Police brutality plunged LA into riots
A groundbreaking find in physics
Hoover Dam open for business
A shocking papal decision redefined tradition
Persian Gulf War ended
A tragic encounter that left America divided
A 22-year-old challenger steps into the ring
The deadliest European conflict since World War II
The birth of W. E. B. Dubois
The day Ukraine changed forever
A brutal offensive shattered all expectations
The Soviet Union's bold move to change the future of science
