U.S. History
All the major chapters in the American story, from Indigenous beginnings to the present day.
World History
History from countries and communities across the globe, including the world’s major wars.
Eras & Ages
From prehistory, though antiquity and into the 21st century, all of history’s biggest chapters.
Culture & Tradition
The stories behind the faiths, food, entertainment and holidays that shape our world.
Science & Innovation
The pivotal discoveries, visionary inventors and natural phenomena that impacted history.
A power hammer is a belt-driven mechanical trip hammer that’s operated with a foot pedal, leaving both hands free to manipulate the steel.
With just 37 seconds to react, could Titanic have avoided disaster—or was the tragedy inevitable?
Weighing the evidence and first hand accounts, a team of researchers attempts to discover the causes and truth behind the wrecks of Titanic and Britannic.
Naval architect Roger Long breaks down Titanic's structure to gain better insight into how and why the "unsinkable" ship sank.
The sinking of Titanic was one of history's most tragic disasters—but could it have been avoided?