The World Series starts Wednesday, and the Baltimore Orioles aren’t in it. That’s not unusual. Next year will mark 30 years since the Orioles’ last World Series appearance.

From 1966-83, the Orioles were in six World Series, winning three of them. Since then, 25 of the 30 major league teams have played in at least one.

Two teams, the Nationals, born in 1969 as the Montreal Expos, and Seattle, which began play in 1977, have never been to the World Series. The Chicago Cubs haven’t appeared since 1945, Pittsburgh’s last World Series came in 1979 when they beat the Orioles, and Milwaukee’s only Series was in 1982, the year before the Orioles’.

This series marks the Tigers’ third appearance since the Orioles’ last one. The Giants have been there twice, and the Cardinals five times.

During those 17 years of excellence the Orioles were above .500 in every year but one, and their six pennants was the most in baseball. Only Oakland won as many World Series.