Question: Mashujaa Day is observed on 20 October commemorates the detention of freemdom fighters including the country's first what?
Sentence (from "Jomo Kenyatta"): Jomo Kenyatta (  1897 – 22 August 1978) was a Kenyan anti-colonial activist and politician who governed Kenya as its Prime Minister from 1963 to 1964 and then as its first President from 1964 to 1978.
Relevant evidence: Yes