Xinhai Revolution (of China; 1911)
Water Boar (60th term of the sexagenary cycle, e.g. 1923, 1983, 2043)
Metal Boar (48th term of the sexagenary cycle, e.g. 1911, 1971, 2031)
Wood Boar (12th term of the sexagenary cycle, e.g. 1935, 1995, 2055)
Earth Boar (36th term of the sexagenary cycle, e.g. 1959, 2019, 2079)
Fire Boar (24th term of the sexagenary cycle, e.g. 1947, 2007, 2067)
tenth month of the lunar calendar
miswriting a word; using the wrong kanji to write a word