1958
The letter 'n'
1919
1999 - 1 = 1998
1933
1932
That was the year 1999.
1817.
1230
A "decade" refers to a period of 10 years, so three decades would be equal to 30 years. Three decades before 1969 would be 1939.
If you are referring to the Chinese Zodiac for the year 1999, 1999 is the year of the Rabbit from 16 Feb 1999 onwards. Before this date it is the Year of the Tiger.
1793, as it was 120 years before 1913.