On April 24, 1849, the New York Knickerbockers,adopted the first official uniform. The first Baseball caps were chip (or straw) hats. A few years later the club switched to a cap made of merino (a soft, fine wool) that featured the two main characteristics of the modern-day baseball cap: a crown and a bill (or visor).
they still do. and to keep the sun out of their eyes
In 2008 the German swimming team wore black costumes and black swimming caps.
The New York Knickerbockers baseball team was formed in 1846. The New York Knickerbockers were one of the first organized baseball teams and wore their very first recorded baseball uniforms in 1849.
Well, many people wore those hats but Daniel Boone was one of the first and most notable people to do so.
The Civil War
It was the American Civil War where American troops wore flat caps called kepis.
Jackie Robinson in Baseball. They retired his jersey for every team in the mlb.
Jake Sales
The answer to this question would have to be what team wore the first uniform numbers on their jersey, because no single player wore a number first without the rest of the team. If you want to consider the first player to come to bat with a uniform number as the first then it would be Earle Combs of the New York Yankees.Although the Cleveland Indians were the first team to experiment with wearing numbers on their sleeves in 1916, it was not until 1929 when the Yankees were the first team to wear numbers on their backs on a regular basis. I cannot find any information on the numbers the Cleveland Indians wore.Numbers were first given out to players as to their position in the batting order. For example Babe Ruth batted third in the line up, and wore number 3, Lou Gehrig wore number 4 as he batted fourth. Earle Combs batted first, and wore the number 1.
Click on the links on this page under the 'Web Links' heading to see who wore numbers for the Yankees, Red Sox, and Mariners. The website baseball-almanac.com has roster information that includes jersey number. On their homepage click 'History' followed by 'team by team' and then select a team.
Mel Ott wore number 4 for the New York Giants baseball team. His number was retired in 1948.
Pitcher Manny Aybar wore No. 64 during the 2002 season.