Middle East tensions surged as conflict reached new heights
The first human traveled into space
The fall of Europe's most powerful leader
Europe realized it wasn't safe
Regime change in Iraq marked a power shift in the region
New findings challenged what we knew about insect origins
A new chapter in Mars exploration
The US entered World War I
One presidential decision changed US politics forever
The assassination that changed the Civil Rights Movement forever
US took a bold step to revive post-war Europe
US President Woodrow Wilson urged Congress to declare war on Germany
