Major league baseball integrated in 1947, now it'll integrate its
Baltimore Orioles - Wikipedia
1961 Major League Baseball expansion - Wikipedia
List of defunct and relocated Major League Baseball teams - Wikipedia
MLB History: Looking Back at MLB Teams That Relocated
Major League Baseball - Wikipedia
Major League Baseball - Wikipedia
Over the last 40 years, MLB has had 1 team relocation, while the
Baseball - Integration, Jackie Robinson, MLB
1960 Major League Baseball expansion draft - Wikipedia