Last Updated: June 17th, 2026 by Jake Cain
1871: Founding of the National Association
On March 17, 1871, a foundational moment in professional baseball occurred with the creation of the National Association of Professional Base Ball Players. This establishment marked a significant evolution from amateur clubs to a more organized professional league, setting the groundwork for modern professional baseball leagues. The National Association brought forth a unified set of rules and a championship system, captivating audiences and expanding the sport’s popularity.
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1936: Joe DiMaggio’s Debut Hits
In the realm of baseball, March 17 marks a significant moment for the New York Yankees as Joe DiMaggio stepped onto the field for his first major league game. The promising rookie showcased his batting skills, although his efforts couldn’t avert a Yankees loss to the St. Louis Cardinals. DiMaggio’s debut hinted at the legendary career to come, one that baseball fans celebrate even decades later.
1946: Jackie Robinson Breaks Color Barrier in Exhibition
On March 17, 1946, Jackie Robinson made history when he stepped onto the field for the Montreal Royals in a game against the Brooklyn Dodgers. This event marked a monumental moment as Robinson became the African American to play on a professional baseball team in the 20th century. His appearance in this exhibition game at City Island Ballpark in Daytona Beach signaled a significant step toward integrating Major League Baseball.
1953: Bill Veeck’s Browns Sale Agreement
Bill Veeck made the decisive move to sell his 80% ownership of the St. Louis Browns in 1953, signaling major changes for the club. This transaction laid the groundwork for the team’s relocation to Baltimore. It was a landmark moment in baseball, outlining the end of an era for the Browns and the beginning of a new chapter as the Baltimore Orioles.
1976: Commissioner Kuhn Opens Spring Training
Bowie Kuhn, the MLB Commissioner at the time, enforced the opening of spring training camps in 1976. His directive was met with immediate action, as within two days, all teams had their camps up and running. This swift obedience highlighted the teams’ readiness to welcome a new season and their respect for the Commissioner’s authority.
1977: Judge Backs Commissioner Kuhn’s Authority
On March 17, 1977, the authority of Baseball Commissioner Bowie Kuhn was strongly upheld by Federal Judge Frank McGarr. Kuhn’s decision to nullify Oakland A’s owner Charlie Finley’s attempt to sell off three star players was the focal point of this affirmation. This ruling became a precedent-setting moment, reinforcing the Commissioner’s power in the governance of baseball.
1978: The Reds Don Green Uniforms
On St. Patrick’s Day in 1978, the Cincinnati Reds introduced green uniforms, marking the first occurrence of this modern tradition within Major League Baseball. They sported these unique green jerseys during a Spring Training game, signaling a festive nod to the holiday that has since caught on with other teams across the league. This stylistic choice by the Reds added a whimsical twist to the customary red and white, and today, donning green by MLB teams on March 17th is an anticipated celebration of St. Patrick’s Day.
Today’s Baseball Birthdays
March 17 is a special day in baseball history, celebrating the birthdays of several notable players who made their mark on the game.
1899: Charlie Root
Charlie Root, born on this day in 1899, is best known for being the all-time wins leader for the Chicago Cubs, a noteworthy achievement for any pitcher.
1917: Hank Sauer
Celebrating his birthday today, Hank Sauer was a powerful slugger, earning the National League MVP award in 1952 as a member of the Chicago Cubs.
1919: Pete Reiser
Born on this day in 1919, Pete Reiser made a name for himself with a relentless play that earned him three batting titles before injuries hampered his career.
1944: Cito Gaston
Cito Gaston, born today in 1944, not only had a solid playing career but also led the Toronto Blue Jays to back-to-back World Series titles as their manager.
1959: Danny Ainge
Today marks the birthday of Danny Ainge, who, before becoming an NBA All-Star and executive, spent time playing major league baseball with the Toronto Blue Jays.
1971: Bill Mueller
Bill Mueller, born on this day in 1971, is remembered for his consistent hitting, which included winning the American League batting title in 2003.