April 21, 1951

1951Tony Danza, American actor and producer^[†]

Tony Danza is an American actor and retired professional boxer. He is known for co-starring in the television series Taxi (1978–1983) and Who's the Boss? (1984–1992), for which he was nominated for an Emmy Award and four Golden Globe Awards. In 1998, Danza won the People's Choice Award for Favorite Male Performer in a New Television Series for his work on the 1997 sitcom The Tony Danza Show. He has also appeared in films such as The Hollywood Knights (1980), Going Ape! (1981), She's Out of Control (1989), Angels in the Outfield (1994), Crash (2004), and Don Jon (2013).

1951Michael Freedman, American mathematician and academic^[†]

Michael Hartley Freedman is an American mathematician at Microsoft Station Q, a research group at the University of California, Santa Barbara. In 1986, he was awarded a Fields Medal for his work on the 4-dimensional generalized Poincaré conjecture. Freedman and Robion Kirby showed that an exotic R4 manifold exists.

1951Bob Varsha, American sportscaster^[†]

Robert August Varsha is an American broadcast journalist who specializes in covering motorsports. He is best known for being the lap-by-lap commentator for Formula 1 and CART series races for ESPN, ABC Sports, and Speed Channel among others.

1951Steve Vickers, Canadian ice hockey player^[†]

Stephen James Vickers is a Canadian former professional ice hockey player. He played ten seasons in the National Hockey League (NHL) with the New York Rangers from 1972 to 1982. He won the Calder Memorial Trophy in 1973.