1900a • 1910a • 1920a • 1930a • 1940a 1950a • 1960a • 1970a • 1980a • 1990a2000a
Historio 19ma yarcento20ma21ma yarcento |
Yardeki: |
Yari: 1901 • 1902 • 1903 • 1904 • 1905 |
La yaro 1931 (MCMXXXI per Romala algarismi) esis ordinara yaro komencinta ye jovdio segun Gregoriala kalendario. Ol esis la 931ma yaro di la duesma yarmilo, la 31ma yaro di la 20ma yarcento, e la 2ma yaro di la yari 1930a.
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