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1452 
 Renaissance man Leonardo da Vinci born in Vinci, Italy.
			
1755 
 Dr Samuel Johnson publishes his Dictionary of the English Language.
			
1832 
		German poet, painter, and illustrator, Wilhelm Busch (Max and Moritz) born in Wiedensahl, Germany.
1889 
 Artist Thomas Hart Benton born in Neosho, Missouri,.
			
1894 
 Blues singer Bessie Smith born in Chattanooga, Tennessee.
			
1912 
 The passenger liner RMS Titanic sinks after having struck an iceberg on April 14.
Eternal President of North Korea Kim Il-sung born in Mangyðngdae, Korea.
1920 
 Anarchists Sacco and Vanzetti allegedly murder two security guards while robbing a shoe store.
			
1947 
 Jackie Robinson of the Brooklyn Dodgers broke the color line in professional baseball.
			
1989 
 Tiananmen Square protests begin in Beijing, China.
			
2013 
 Two bombs explosions near the finish line at the Boston Marathon kill 3 people and injuring 264 others.