Centuries: 9th century - 10th century - 11th century

Decades: 920s 930s 940s 950s 960s - 970s - 980s 990s 1000s 1010s 1020s

Years: 974 975 976 977 978 - 979 - 980 981 982 983 984

• The Tynwald, the parliament of the Isle of Man, is founded.
• Ethelred succeeds his brother Edward as king of England

• Estrid of the Obotrites, future wife of king Olaf Skötkonung of Sweden