Centuries: 9th century - 10th century - 11th century
Decades: 930s 940s 950s 960s 970s - 980s - 990s 1000s 1010s 1020s 1030s
Years: 977 978 979 980 981 - 982 - 983 984 985 986 987
Births
Deaths
... US patents 3,726,146 (1973) and 5,353,655 (1994) by L.A. Mishler and US patent 5,800,311 (1998) by P.S.Chuang. External links ...