戊寅年 is the 15th year in the cycle of the Chinese traditional lunar calendar. In this year, the Earthly Branch (地支) '寅' corresponds to the Tiger (虎).
Here's how to determine an 戊寅年:
Divide the year by 60. If the remainder is 18, it's likely an 戊寅年.
Alternatively, subtract 3 from the year, then divide by 10. If the remainder is 5, it's a 戊寅 year. Also, subtract 3 from the year, then divide by 12. The remainder must be 3.
The years 1938 and 1998 were 戊寅 years. Other 戊寅 years include 18, 78, 138, 198, 258, 318, 378, 438, 498, 558, 618, 678, 738, 798, 858, 918, 978, 1038, 1098, 1158, 1218, 1278, 1338, 1398, 1458, 1518, 1578, 1638, 1698, 1758, 1818, 1878, 1938 and 1998.
People born in 戊寅 year (过山之虎) are said to be vigorous, but easily changeable. They should develop themselves outside their hometowns. Women born in this year are clever. They tend to get married late, or may need to marry into their spouse's family if they marry early.
The element of 戊 is Yang Earth (阳之土), while 寅 is Yang Wood (阳之木), which results in a Wood-over-Earth relationship (相克). The associated Na Yin (纳音) element is City Wall Earth (城头土). People born in 戊寅 years are steady, honest, dislike lying, and are rational.