Last Updated on August 7, 2026 by Daily News Staff

Every day, billions of people make video calls, join virtual meetings, send text-message donations during disasters, and stay connected with loved ones over the internet.

Few realize that one of the pioneers behind these technologies is Marian Croak, an engineer, inventor, and technology leader whose work has fundamentally changed how the world communicates.

Despite holding more than 200 U.S. patents and helping shape modern internet communications, Croak remains largely unknown outside the technology community. That’s exactly why she deserves a place in our Forgotten Genius Fridayseries.

From Engineering to Innovation

Marian Rogers Croak earned a bachelor’s degree from Princeton University before completing a Ph.D. in Social Psychology and Quantitative Analysis at the University of Southern California.

Her unique combination of engineering expertise and an understanding of human behavior would become one of her greatest strengths. Rather than simply building technology, she focused on solving real-world communication problems.

She joined Bell Labs, later becoming part of AT&T, where she spent decades developing new telecommunications technologies.

Helping Create the Internet Calling Revolution

For much of the twentieth century, telephone calls relied on dedicated telephone lines.

Croak helped pioneer technologies that made Voice over Internet Protocol (VoIP) practical, allowing voice conversations to travel over internet networks instead.

Today, VoIP powers countless services, including:

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• Zoom
• Microsoft Teams
• WhatsApp calling
• FaceTime
• Internet-based business phone systems
• Telemedicine appointments

Millions of remote workers, students, families, and businesses depend on technologies that evolved from these innovations.

A Better Way to Help During Disasters

One of Croak’s most visible inventions came from a simple but powerful idea.

What if people could donate to disaster relief simply by sending a text message?

She led the development of systems that made text-to-donate campaigns possible.

Following disasters such as Hurricane Katrina and the devastating 2010 Haiti earthquake, millions of people contributed to relief efforts simply by sending a short text message. The technology helped raise tens of millions of dollars quickly, demonstrating how communication technology could save lives beyond making phone calls.

More Than 200 Patents

Croak has been awarded more than 200 U.S. patents covering internet communications, networking, emergency response systems, and digital collaboration.

Her inventions have influenced everything from enterprise communications to cloud networking and mobile technologies.

Leading Responsible Artificial Intelligence

In 2014, Croak joined Google as a Vice President of Engineering.

Today, she helps lead initiatives focused on Responsible AI and Human-Centered Technology, working to ensure artificial intelligence benefits society while addressing issues of fairness, accessibility, and trust.

Her career reflects an important lesson: innovation is not just about building powerful technology—it is also about building technology responsibly.

Honors and Recognition

Although Marian Croak spent decades working behind the scenes, her achievements have earned growing recognition.

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Among her honors are:

• National Inventors Hall of Fame inductee
• National Academy of Engineering member
• American Academy of Arts and Sciences fellow
• IEEE Founders Medal recipient

These awards recognize a lifetime devoted to improving how people connect with one another.

Why Marian Croak Matters

Many inventors create products.

Marian Croak created possibilities.

Every internet phone call between grandparents and grandchildren, every virtual doctor’s appointment, every online business meeting, and every text-message donation during a humanitarian crisis reflects technologies she helped make possible.

Her story reminds us that some of history’s greatest innovators work quietly behind the scenes, changing the world without becoming household names.

That’s exactly the kind of legacy Forgotten Genius Friday exists to celebrate.

Related Links

• National Inventors Hall of Fame – Marian Croak — An excellent overview of Croak’s career, her work advancing VoIP, text-to-donate technology, and her induction into the Hall of Fame. 
  Learn more about Marian Croak at the National Inventors Hall of Fame
• National Inventors Hall of Fame – The Problem-Solving Engineer — A deeper profile examining Croak’s path from an inquisitive young student to a telecommunications pioneer. 
  Read Marian Croak: The Problem-Solving Engineer
• Google – Marian Croak — Croak’s official Google author and leadership profile, including her work in Responsible AI and Human-Centered Technology. 
  Explore Marian Croak’s work at Google
• Google – Marian Croak’s Vision for Responsible AI — An interview exploring how Croak brought her decades of technological experience into the development of responsible artificial intelligence. 
  Read about Marian Croak’s vision for Responsible AI
• Princeton University – Marian Croak and Innovation — Princeton highlights Croak, a member of its Class of 1977, and her contributions to VoIP, innovation, mentorship, and women in STEM. 
  Read Princeton’s profile featuring Marian Croak

🧠 Discover the remarkable innovators, inventors, and trailblazers who helped shape our world but rarely receive the recognition they deserve. Share your thoughts in the comments and subscribe to the STM Daily News newsletter to catch every new Forgotten Genius Friday feature and more inspiring stories delivered to your inbox.

Last Updated on August 2, 2026 by Daily News Staff

On December 3, 1967, medical history was made in Cape Town, South Africa, when surgeon Dr. Christiaan Barnard performed the world’s first successful human-to-human heart transplant.

The groundbreaking operation took place at Groote Schuur Hospital and changed what doctors believed was possible.

A New Heart for Louis Washkansky

The recipient was Louis Washkansky, a 53-year-old grocer suffering from severe heart disease. His condition had deteriorated to the point that conventional treatments offered little hope.

The donor was Denise Darvall, a 25-year-old woman who suffered catastrophic brain injuries after being struck by a car. With permission from her father, her heart was donated to Washkansky.

Barnard and his surgical team removed Washkansky’s failing heart and replaced it with Darvall’s healthy heart. When the transplanted heart began beating inside its new recipient, a new era in medicine had begun.

He Survived Just 18 Days — But the Operation Was a Success

Washkansky survived for 18 days following the transplant. He ultimately died from pneumonia.

One of the greatest challenges wasn’t simply performing the surgery—it was preventing the recipient’s immune system from rejecting the transplanted organ. The drugs used to suppress Washkansky’s immune response also left him extremely vulnerable to infection.

Despite his short survival, the operation demonstrated that transplanting a human heart was possible.

The Science Behind the Breakthrough

Barnard’s achievement didn’t happen in isolation. Researchers and surgeons around the world had spent years developing the techniques that made heart transplantation possible.

Among the pioneers was American surgeon Dr. Norman Shumway at Stanford University, whose extensive experimental work on heart transplantation helped establish many of the surgical techniques used in the procedure.

Just weeks after Barnard’s historic operation, Shumway performed the first successful adult heart transplant in the United States in January 1968.

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Over the following decades, improved surgical techniques and increasingly effective anti-rejection medications transformed heart transplantation from an experimental procedure into an established treatment for certain patients with end-stage heart failure.

A Medical Milestone

Today, thousands of heart transplants are performed around the world each year, and many recipients survive for years or even decades after receiving a donor heart.

What began with a daring operation in Cape Town in December 1967 helped open the door to an entirely new field of medicine.

The Knowledge: The first successful human-to-human heart transplant was performed by Dr. Christiaan Barnard on December 3, 1967, at Groote Schuur Hospital in Cape Town, South Africa. The recipient, Louis Washkansky, lived for 18 days after the historic procedure.

The Knowledge is an STM Daily News series exploring the inventions, discoveries, people and moments that helped shape the world we live in today.

Related Links

• University of Cape Town: The World’s First Human Heart Transplant — Learn more about Dr. Christiaan Barnard, Groote Schuur Hospital and the medical team behind the historic 1967 operation.
• University of Cape Town: 50th Anniversary of the First Human Heart Transplant — A retrospective marking the anniversary of the world’s first human-to-human heart transplant.
• Stanford Medicine: The First U.S. Adult Heart Transplant — Explore Dr. Norman Shumway’s pioneering research and the first adult heart transplant performed in the United States.
• OrganDonor.gov: Donation and Transplantation History — Review a timeline of major milestones in organ donation and transplantation.
• OrganDonor.gov: Matching Organ Donors and Recipients — Learn how donor organs are matched with patients awaiting transplants.

Forgotten Genius Friday | LA History

When people think about the architects who shaped Los Angeles, names like Frank Lloyd Wright or Richard Neutra often come to mind. Yet one of the city’s most influential designers—and one whose work touches nearly every corner of Southern California—was Paul R. Williams.

From elegant Beverly Hills estates to landmark public buildings, hotels, churches, and even Los Angeles International Airport, Williams helped define the look and feel of modern Los Angeles. Despite facing discrimination throughout his career, he became one of the most successful architects in American history, proving that extraordinary talent can overcome extraordinary obstacles.

From Humble Beginnings to Architectural Greatness

Paul Revere Williams was born in Los Angeles on February 18, 1894. Tragically, he was orphaned by the age of four and was raised by foster parents who encouraged his education and artistic talents.

Even as a young man, Williams dreamed of becoming an architect—a profession that was overwhelmingly white during the early twentieth century. Teachers and classmates reportedly questioned whether Black clients or white clients would ever hire him.

Rather than allowing those doubts to define his future, Williams let his work speak for itself.

In 1921, he became the first African American architect licensed west of the Mississippi River. Two years later, he became the first Black member of the American Institute of Architects (AIA), breaking another significant barrier in the profession.

Designing Around Prejudice

Williams often found himself in uncomfortable situations with clients who were unwilling to sit beside or across from a Black architect.

To adapt, he developed the remarkable ability to draw upside down while standing on the opposite side of a drafting table. This allowed clients to view his sketches from their perspective without having to sit next to him.

The unusual skill became one of his trademarks—not because it made him a better architect, but because it helped him navigate the racial prejudices of the era while continuing to build an extraordinary career.

Building the Image of Los Angeles

Over nearly six decades, Williams designed more than 3,000 buildings.

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His portfolio reflected the incredible diversity of Los Angeles itself.

He designed:

• Luxury homes
• Hotels
• Churches
• Hospitals
• Schools
• Commercial buildings
• Government facilities
• Public housing

Unlike many architects who specialized in a single style, Williams mastered numerous architectural traditions, including Spanish Colonial Revival, Tudor Revival, French Provincial, Mediterranean Revival, Georgian, and Mid-Century Modern.

His flexibility allowed him to meet the changing tastes of Southern California throughout the twentieth century.

Landmarks That Still Define the City

Many Angelenos encounter Paul R. Williams’ work without realizing it.

Among his most recognizable projects are:

The Theme Building at LAX

One of Los Angeles’ most iconic landmarks, the futuristic Theme Building became a symbol of the Jet Age. Williams served as part of the architectural team that helped bring the project to life, creating one of the city’s most recognizable structures.

Golden State Mutual Life Insurance Building

Located in South Los Angeles, this building became one of the most significant examples of Black-owned business success during the mid-twentieth century while also serving as an architectural landmark.

The Beverly Hills Hotel

Williams contributed to renovations and expansions that helped preserve the hotel’s status as one of Hollywood’s most famous destinations.

Celebrity Homes

Williams became known as “The Architect to the Stars,” designing homes for entertainers, athletes, business executives, and political leaders. His clients included Frank Sinatra, Lucille Ball and Desi Arnaz, Barbara Stanwyck, and many others.

More Than Mansions

Although Williams became famous for luxury homes, his career extended far beyond Beverly Hills.

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He believed great architecture should serve entire communities.

His work included:

• Churches that remain community anchors today
• Hospitals serving growing neighborhoods
• Affordable housing developments
• Civic buildings
• Educational facilities
• Military projects during World War II

His influence reached virtually every part of Southern California.

Helping Shape Los Angeles’ Future

Williams didn’t simply design buildings—he helped guide the city’s growth.

He served on the Los Angeles City Planning Commission, contributing to discussions about how one of America’s fastest-growing cities should develop during the twentieth century.

As Los Angeles expanded into the global metropolis we know today, Williams’ work helped create the city’s distinctive architectural identity.

Recognition That Arrived Too Late

Although Williams earned tremendous professional success during his lifetime, many historians believe his contributions were underappreciated for decades.

In 1957, he became the first African American Fellow of the American Institute of Architects.

More than three decades after his passing in 1980, the AIA posthumously awarded him the prestigious Gold Medal in 2017—its highest honor—recognizing a legacy that transformed American architecture.

Today, museums, preservation organizations, and historians continue to celebrate Williams as one of the greatest architects in Los Angeles history.

Why Paul R. Williams Still Matters

Los Angeles is often described through its skyline, neighborhoods, and famous landmarks.

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Paul R. Williams helped create many of those places.

His story is about much more than architecture. It is about resilience, innovation, determination, and excellence in the face of discrimination. Every building he designed challenged assumptions about who could lead, create, and inspire.

For Angelenos, his work remains woven into the city’s identity.

For the rest of us, his life serves as a reminder that some of history’s greatest innovators are hiding in plain sight.

Forgotten Genius Friday Takeaway

Paul R. Williams didn’t just design beautiful buildings—he helped design the modern image of Los Angeles.

His remarkable career opened doors for future generations of architects while leaving behind landmarks that millions of people still admire every year. More than a century after he began his career, his influence continues to shape the city he called home.

Sometimes the greatest architects don’t just build structures—they build history.

🧠 Discover the remarkable innovators, inventors, and trailblazers who helped shape our world but rarely receive the recognition they deserve. Share your thoughts in the comments and subscribe to the STM Daily News newsletter to catch every new Forgotten Genius Friday feature and more inspiring stories delivered to your inbox.

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