This Day in History: Feb. 21

In 1974, Brooks Robinson signed his 20th Orioles contract. His salary was an estimated $115,000, making him the second-highest paid Orioles player at the time. Above, Robinson poses with infielders Mark Belanger, Davey Johnson and Boog Powell (L-R). Also in 1974, Tom Seaver became the highest paid pitcher in baseball history after signing with the New York Mets for $172,500. Today, Clayton Kershaw holds that title after signing a seven-year, $215 million contract with the Los Angeles Dodgers earlier this year. (Clarence B. Garrett, Baltimore Sun photo, 1969).

1838: American inventor Samuel Morse gave his first public demonstration of the telegraph.

1885: The Washington Monument was dedicated.

1925: The New Yorker magazine made its debut.

1947: Edwin Land publicly demonstrated his Polaroid Land camera, which could produce a black-and-white photograph in 60 seconds.

Compiled by Laura Lefavor and Paul McCardell.