The 12 Chinese Zodiac Signs http://www.pbase.com/vickibrown/the_12_the_chinese_zodiac_teapots

The Ox is the second as one of the 12-year cycle of animals which appear in the Chinese zodiac related to the Chinese calendar. The Year of the Ox is denoted by the earthly branch character.
In the Vietnamese zodiac, the water buffalo occupies the position of the ox. (Source: Wikipedia)

Years and the Five Elements
People born within these date ranges can be said to have been born in the year of the Ox, while also bearing the following elemental sign:

31 January 1889 – 20 January 1890: Earth Ox
19 February 1901 – 7 February 1902: Metal Ox
6 February 1913 – 25 January 1914: Water Ox
25 January 1925 – 12 February 1926: Wood Ox
11 February 1937 – 30 January 1938: Fire Ox
29 January 1949 – 16 February 1950: Earth Ox
15 February 1961 – 4 February 1962: Metal Ox
3 February 1973 – 22 January 1974: Water Ox
20 February 1985 – 8 February 1986: Wood Ox
7 February 1997 – 27 January 1998: Fire Ox
26 January 2009 – 13 February 2010: Earth Ox
12 February 2021 – 31 January 2022: Metal Ox
31 January 2033 – 18 February 2034: Water Ox