African

19th–20th century

20th century

mid-20th century

circa 1950

early-mid 20th century (before 1974)

1969

early-mid 20th century

circa 1970

early-mid 20th century

circa 1950

early–mid 20th century

Mid–late 20th century

Mid–late 20th century

Mid–late 20th century

early 1970s

circa 600

circa 1920–1930

20th century

19th or 20th century

Early 20th century

Early 20th century

20th century

Late 19th to early 20th century

Late 19th to early 20th century