#153
First Atomic Submarine Launched
#'d to 50
#154
Alaska Becomes 49th State
#'d to 50
#158
Germany Leaves League of Nations
#'d to 50
#160
U.S.A. Enters World War II
#'d to 50
#164
1989 San Francisco Earthquake
#'d to 50
#167
Boy Scouts of America Launches
#'d to 50
#168
New Zealand Pioneers Women's Voting Rights
#'d to 50
#169
First Moving Assembly Line
#'d to 50
#172
United States Constitution Signed
#'d to 50
#173
Empire State Building Built
#'d to 50
#174
Golden Gate Bridge Completed
#'d to 50
#180
Pilgrims Land at Plymouth Rock
#'d to 50
#184
Brooklyn Bridge Completed
#'d to 50
#186
Pluto Recategorized as Dwarf Planet
#'d to 50
#188
Thanksgiving Adopted as Holiday
#'d to 50
#190
Baseball Hall of Fame Opens
#'d to 50
#191
National League Established
#'d to 50
#199
Introduction of EURO Currency
#'d to 50
#200
Czechoslavakia Splits in Two
#'d to 50
