b. January 1, 1855 · Right fielder across three clubs, 1879 to 1882.

b. January 1, 1857 · 342 wins, a pitching Triple Crown, and a leading part in the players' revolt that produced a league of their own.

b. January 1, 1866 · First baseman across two clubs, 1887 to 1891.

b. January 1, 1868 · Catcher across two clubs, 1896 to 1905.

b. January 1, 1869 · Shortstop who batted .283 across two clubs, 1894 to 1906.

b. January 1, 1870 · Pitcher across two clubs, 1892 to 1893.

b. January 1, 1880 · Right fielder for the Washington Senators, 1905 to 1905.

b. January 1, 1882 · Pitcher for the Detroit Tigers, 1905 to 1905.

b. January 1, 1891 · Pitcher for the Brooklyn Robins, 1914 to 1915.

b. January 1, 1894 · Second baseman across two clubs, 1915 to 1923.

b. January 1, 1900 · Catcher for the Boston Red Sox, 1925 to 1926.

b. January 1, 1902 · Cuban third baseman who appeared for the Cuban Stars and New York Cubans across three widely separated stretches.

b. January 1, 1904 · Center fielder who batted .300 across six clubs, 1926 to 1938.

b. January 1, 1910 · Pitcher for the New York Yankees, 1932 to 1934.

b. January 1, 1911 · 58 home runs in 1938, two short of Ruth, and four and a half seasons taken out of the middle of his career by the army.

b. January 1, 1915 · Shortstop across two clubs, 1946 to 1948.

b. January 1, 1924 · Scored 120 runs to lead the National League in 1950 and drew 980 walks in a career nobody remembers.

b. January 1, 1924 · Pitcher across two clubs, 1952 to 1955.

b. January 1, 1927 · Pitcher across two clubs, 1943 to 1954.

b. January 1, 1931 · Third baseman who batted .205 across two clubs, 1954 to 1958.

b. January 1, 1942 · Second baseman for the Minnesota Twins, 1964 to 1964.

b. January 1, 1955 · Right-hander who won the 1983 American League Cy Young Award for the Chicago White Sox, then declined sharply after a trade to San Diego.

b. January 1, 1955 · Pitcher across six clubs, 1976 to 1986.

b. January 1, 1988 · Won the 2015 Cy Young Award with a sinker that never left the ground, and five Gold Gloves.

d. January 1, 1904 · Pitcher for the Detroit Wolverines, 1883 to 1883.

d. January 1, 1916 · Third baseman for the Washington Senators, 1892 to 1892.

d. January 1, 1919 · Left fielder for the Pittsburgh Pirates, 1903 to 1903.

d. January 1, 1921 · Left fielder for the Louisville Eclipse, 1883 to 1883.

d. January 1, 1923 · Wee Willie stood five foot four and weighed 140 pounds, and only Ichiro Suzuki has strung together more 200-hit seasons in a row.

d. January 1, 1925 · Left fielder who batted .267 across three clubs, 1887 to 1890.

d. January 1, 1949 · Pitcher for the Chicago Whales, 1915 to 1915.

d. January 1, 1953 · Pitcher across three clubs, 1921 to 1930.

d. January 1, 1971 · Catcher who spent twenty-four Negro Leagues seasons with the Baltimore Black Sox, New York Black Yankees and Baltimore Elite Giants.

d. January 1, 1971 · Right fielder who batted .299 across five clubs, 1923 to 1933.

d. January 1, 1971 · Pitcher for the St. Louis Cardinals, 1916 to 1916.

d. January 1, 1974 · Second baseman who batted .219 across eight clubs, 1914 to 1922.

d. January 1, 1977 · Pitcher across five clubs, 1967 to 1976.

d. January 1, 1981 · Pitcher and catcher whose Negro Leagues career spanned twenty-eight years and more than a dozen clubs.

d. January 1, 1986 · Catcher for the Pittsburgh Pirates, 1954 to 1958.

d. January 1, 1987 · Pitcher across two clubs, 1924 to 1926.

d. January 1, 1990 · Went 22-11 across 277 innings for Pittsburgh in 1927 after years of brief major-league chances.

d. January 1, 1992 · Right fielder for the St. Louis Browns, 1931 to 1931.

d. January 1, 2000 · Second baseman for the Boston Red Sox, 1932 to 1932.

d. January 1, 2004 · Right fielder for the Chicago White Sox, 1933 to 1933.

d. January 1, 2007 · Left fielder who batted .279 across four clubs, 1938 to 1942.

d. January 1, 2008 · Pitcher for the Detroit Tigers, 1957 to 1957.

d. January 1, 2020 · Threw the only perfect game in World Series history two years after losing 21 games.

d. January 1, 2020 · Pitcher for the Minnesota Twins, 1962 to 1962.