New discoveries from several archaeological sites in North and South America suggest that ancient people first arrived in the New World much earlier than scientists once thought

A backyard in Orange County, New York, became the site of an incredible discovery of a complete mastodon jaw -- the first find like it in New York in more than 11 years.

Scientists have pinpointed a time frame in which Neanderthals began "mixing" with modern humans, based on DNA of early inhabitants of Europe.

Terumi Tanaka, a survivor of the U.S. atomic bombings of Japan and the representative of an organization that won this year’s Nobel Peace Prize, has called on Russian President Vladimir Putin to stop making nuclear threats

The bombing of Pearl Harbor 83 years ago launched the United States into World War II

Mary McGee, who became the first woman to compete in grueling motocross races in the U.S. and internationally, died this week at age 87.

The Air Force's first female airman received the Silver Star for her role in shooting down dozens of Iranian drones headed to Israel.

Malcolm X’s daughter and her lawyers announced they filed a $100 million lawsuit against the US government on Friday for the assassination of the Black resistance leader.

Scientists have discovered a pristine fossil of a mummified saber-toothed kitten that had been frozen in the Russian tundra for about 37,000 years.

Lessie Benningfield Randle, one of the two last known living survivors of the Tulsa Race Massacre, celebrated her 110th birthday on Nov. 10.

ABC News’ Josh Margolin explains how Elvis Presley’s only child, Lisa Marie Presley, was used in a fraud scheme to steal the King of Rock and Roll’s iconic Graceland home.

The "Little Rock Nine" were the first African American students to attend Little Rock Central High School following Brown v. Board.

The historic hotel and casino in Las Vegas was imploded in a controlled blast overnight to make way for a new ballpark for the Las Vegas Athletics.

A U.S. bombshell, likely dropped during WWII, exploded near a runway at a Japanese airport, causing nearly 90 flight cancellations.

A U.S. bombshell, likely dropped during WWII, exploded near a runway at a Japanese airport, causing nearly 90 flight cancellations.

The remains of a Vietnam War pilot who went missing while flying over the jungles of Vietnam in 1972 have finally been found and identified more than 50 years later.

A new species of dinosaur has been identified more than a decade after a large number of ancient skeletons were found in Spain

Researchers expect to find more fossils and more new species from the same site.

Among the discoveries in the July mission, was a "significant" change to the Titanic's silhouette.

A recent underwater expedition revealed the railing on the ship’s bow has fallen off after 112 years as well as images of the Diana of Versailles statue that was on display in first class.

A 4-year-old boy accidentally smashed a Bronze Age jar during a visit to a museum in Israel on Friday, the museum said.

There was once a magma-filled ocean on the south pole of the moon, scientists recently discovered after analyzing lunar soil.

Nate Smith talks about Gnatalie, believed to belong to the herbivore species of long-neck dinosaurs, before her Los Angeles debut.

ABC News' Juju Chang travels to Camp Amache, a former Japanese internment camp, and speaks with Carlene Tinker, a Camp Amache survivor, about her experience as a prisoner there.

The discovery was made in Region IX, Insula 10 in Pompeii, as a part of a larger excavation to secure the edge of the ancient site.

ABC News' Trevor Ault speaks with comedian Ed Helms about season two of his award-winning podcast "Snafu," based on the burglary that exposed J. Edgar Hoover's secret illegal FBI program.

ABC News is the "10 Million Names" project's exclusive media partner, which helped ABC News' Pierre Thomas trace his West Virginia roots.

A team of researchers challenged the belief that complex life forms first emerged on Earth 635 million years ago, saying life may have existed 1.5 billion years before.

A stegosaurus skeleton known as "Apex" was recently sold at auction for $44 million. It has sparked a debate over whether private buyers should be allowed to own fossils.

The shipwreck was discovered in the Baltic Sea, about 20 nautical miles off the Swedish coast, by a team of Polish technical divers from the group Baltictech.

The shipwreck was discovered in the Baltic Sea, about 20 nautical miles off the Swedish coast, by a team of Polish technical divers from the group Baltictech.

Early humans may have played a significant role in the demise of one of the most iconic ancient species -- the woolly mammoth -- and others like it, scientists say.

The researchers used AI to track ecosystem changes through fossil records.

The U.S. Navy has exonerated 256 Black sailors who had been unjustly court-martialed following the World War II-era Port Chicago explosion that killed hundreds.

A nearly-complete Stegosaurus skeleton, nicknamed "Apex", sold on Wednesday for record $44.6M at a Sotheby's auction in New York.

Israeli Holocaust museum Yad Vashem will debut a collection of Disney-themed artwork this Monday.

The Supreme Court's ruling on presidential immunity goes against all of the principles the Constitution's framers pushed for, historians and legal experts argued.

Attorneys for the two remaining survivors of the 1921 Tulsa Race Massacre are calling on President Joe Biden to open an investigation into the massacre.

"GMA" explores Saint Anthony Main, its history and gets a lesson in swing dancing.

The two remaining Tulsa Race Massacre survivors, Viola Fletcher, 110, and Lessie Benningfield Randle, 109, continue to pursue reparations after the Oklahoma Supreme Court dismissed their case.

Attorneys for the two remaining survivors of the massacre are calling to open an investigation after the Oklahoma Supreme Court decided to dismiss the survivors’ lawsuit that sought reparations.

The Stonewall National Monument Visitor Center, which opened to the public Friday, is the first LGBTQ visitor center in the National Park Service.

Fossils from the skull of a Neanderthal child that likely had Down syndrome shed light into the communal caregiving that likely aided in the child's survival.

Being back at Rickwood Field brought back painful memories for MLB Hall of Famer Reggie Jackson, who detailed the racism he experienced there.

Parvosuchus aurelioi dates back 237 million years and is the first small, predatory reptile of its kind to be found in Brazil.

Paleontologists have discovered a new species of ancient crocodile-like reptile that once roamed the lands and waters of Brazil.

Lokiceratops rangiformis lived about 78 million years ago, researchers said.

Researchers have discovered a new, giant-horned species of dinosaur named Lokiceratops rangiformis that they say is the "largest and more ornate" of its kind ever found.

The ornate room would have been used for ritual activities or storing sacred objects, according to the Archaeological Parks of Pompeii.

The room has been interpreted as a sacrarium, or a Roman sanctuary.