1170

1170 is a natural number that follows 1169 and precedes 1171. In mathematics it has the prime factorization 2 × 3^2 × 5 × 13, making it a composite integer. It is divisible by 2, 3, 5, and 9. In Roman numerals it is written as MCLXX.

1170 CE is a year in the late 12th century. The most notable event associated with this year is the murder of Thomas Becket, the Archbishop of Canterbury, in Canterbury Cathedral on December 29, 1170. The killing, linked to tensions between Henry II and Becket, led to Becket's martyrdom and later canonization in 1173 by Pope Alexander III, reinforcing the authority of the church in England and across Christendom. The incident had a lasting impact on medieval politics and religious life, including increased pilgrimage to Becket's tomb and shifts in church-state relations.

Geographically and historically, the year sits within the High Middle Ages, a period characterized by feudal politics, monarchical centralization, and ongoing religious reform efforts in Europe. In a broader medieval context, contemporaneous developments included ongoing religious and political conflicts that shaped governance, law, and ecclesiastical authority across different regions.

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