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979

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


Events:

Births:

Deaths:



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Eratosthenes

... travellings to be 5,000 stadia. The calculation is based on the assumption that the Sun is so far away that its rays can be taken as parallel. Eratosthenes knew that ...