This
category is for organizations, places, companies, or other things that were founded or established in Guyana in the 20th century.
19th c. ← Establishments in Guyana in the 20th century→ 21st c.
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- 1900s establishments in Guyana — 1901
- 1902
- 1903
- 1904
- 1905
- 1906
- 1907
- 1908
- 1909
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- 1910s establishments in Guyana — 1910
- 1911
- 1912
- 1913
- 1914
- 1915
- 1916
- 1917
- 1918
- 1919
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- 1920s establishments in Guyana — 1920
- 1921
- 1922
- 1923
- 1924
- 1925
- 1926
- 1927
- 1928
- 1929
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- 1930s establishments in Guyana — 1930
- 1931
- 1932
- 1933
- 1934
- 1935
- 1936
- 1937
- 1938
- 1939
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- 1940s establishments in Guyana — 1940
- 1941
- 1942
- 1943
- 1944
- 1945
- 1946
- 1947
- 1948
- 1949
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- 1950s establishments in Guyana — 1950
- 1951
- 1952
- 1953
- 1954
- 1955
- 1956
- 1957
- 1958
- 1959
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2000s establishments in Guyana — 2000
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