Answer:
1968 : Civil rights leader Martin Luther King Jr. delivered his "mountaintop" speech to a rally of striking sanitation workers in Memphis, Tenn., less than 24 hours before he was assassinated.
1860 : The Pony Express a new faster mail service using riders on a horseback relay instead of the traditional stagecoaches begins service between St. Joseph, Mo. and Sacramento, Calif. The Pony Express reduced the time for mail to travel from the Atlantic and Pacific coasts to around ten days. After only 1 year in March 1861 after suffering large losses and not gaining the mail contract The Pony Express Company ceased trading.
1936 : Bruno Richard Hauptmann is executed in the electric chair for the kidnapping and the death of the Lindbergh baby
Step-by-step explanation: