A map of Time; Unit 6

chapter 20, 21, 22, & 23

Chapter 20

1914 - 1918
1917
1919
1920
1922
1929
1933
1937 - 1938
1939
1939 - 1945
1941
1945 - 1952
1945
1947 - 1991
1948 - 1952
1957
1994
2002

Chapter 21

1917
1921
1929 - 1953
1934 - 1935
1945 - 1950
1949
1950 - 1953
1958 - 1961
1959
1962
1965 - 1973
1966 - 1976
1968
1978 - 1993
1979
1985 - 1991
1989
1991

Chapter 22

1915
1923 - 1938
1928
1947
1948
1949
1955
1957 - 1975
1959
1960 - Approx. 1970
1967
1973
1979
Approx. 1980 - Approx. 1990
1994
2011

Chapter 23

1919 - 1946
Approx. 1945
1960
1962
1963
1970
1979
1979
1982
1994
1995
1997
2001
2008
2011