1983

The final episode of the television series “M*A*S*H* aired; nearly 106 million viewers saw the finale, which remains the most-watched episode of any U.S. television series to date.

1993

A gun battle erupted at a religious compound near Waco, Texas, when Bureau of Alcohol, Tobacco and Firearms agents tried to arrest Branch Davidian leader David Koresh on weapons charges; four agents and six Davidians were killed as a 51-day standoff began.

2014

Delivering a blunt warning to Moscow, President Barack Obama expressed deep concern over reported military activity inside Ukraine by Russia and warned “there will be costs” for any intervention.