1774 1775 1776 1777 1778 1779 1780
1740 1750 1760 1770 1780 1790 1800
15 16 17 18 19 20 21
-1 0 1 2 3 4 5
1777 se 1777 m ane nan almanak gregoryen .
Gade osi nonm 1777 .