- 1876 - The Alleghenies bring professional baseball to Pittsburgh playing their first game at Union Park. Next year, the team will be accepted into the minor-league International Association but will disband in 1878.
- 1954 :
- ---After a 51-year absence, big league ball returns to Baltimore as a crowd of 46,354 watch the Orioles beat the White Sox , 3–1, in the first game played at Memorial Stadium . Clint Courtney of the Orioles hits the first major league Home Run in the ballpark. A Baltimore ownership group, which included Clarence Mills, Jim Keelty, Jerry Hoffberger and Zanvyl Krieger, bought the former St. Louis Browns and brought the franchise to the Charm City.
- --- Hank Aaron collects the first hit of his major league career. The Milwaukee Braves ’ rookie goes 2-for-5 in a 7–6 win over the St. Louis Cardinals .
- 1998 - The first-ever American League - National League doubleheader ends up a good day for New York . The Yankees are forced to come to Shea Stadium after a beam falls into the stands at Yankee Stadium on April 13. The Yankees earn their first victory in Queens in 22 years as they defeat the Angels 6–3. Former Mets star Darryl Strawberry , the all-time Home Run leader at Shea, adds to his total with a shot into the left field bleachers. In the regularly-scheduled night game, the Mets beat the Cubs 2–1. The Yankees, who played at Shea in 1974-75 while Yankee Stadium was renovated, drew a crowd of 40,743, a dramatic contrast to the gathering of 16,012 who showed up for the Mets game at night.
- 1864 - Hub Collins , IF/OF (d. 1892 )
- 1886 - King Cole , pitcher (d. 1916 )
- 1910 - Eddie Mayo , All-Star infielder
- 1931 - Ed Bailey , All-Star catcher
- 1940 - Woodie Fryman , All-Star pitcher
- 1940 - Willie Davis , All-Star outfielder
- 1945 - Ted Sizemore , infielder
- 1969 - Jeromy Burnitz , All-Star outfielder
- 1977 - Paul Phillips , catcher
- 1978 - Milton Bradley , outfielder
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