Baseball by Decade Explore baseball history from the 1870s to the present 2020s 2020-2029 2703 Players 150 Teams 5 Championships 2010s 2010-2019 3566 Players 300 Teams 10 Championships 2000s 2000-2009 3231 Players 300 Teams 10 Championships 1990s 1990-1999 2805 Players 278 Teams 9 Championships 1980s 1980-1989 2281 Players 260 Teams 10 Championships 1970s 1970-1979 2083 Players 246 Teams 10 Championships 1960s 1960-1969 1786 Players 198 Teams 10 Championships 1950s 1950-1959 1562 Players 160 Teams 10 Championships 1940s 1940-1949 1705 Players 160 Teams 10 Championships 1930s 1930-1939 1507 Players 160 Teams 10 Championships 1920s 1920-1929 1679 Players 160 Teams 10 Championships 1910s 1910-1919 1987 Players 176 Teams 10 Championships 1900s 1900-1909 1366 Players 152 Teams 6 Championships 1890s 1890-1899 1168 Players 138 Teams 0 Championships 1880s 1880-1889 1094 Players 159 Teams 5 Championships 1870s 1870-1879 450 Players 78 Teams 0 Championships