Question: Mashujaa Day is observed on 20 October commemorates the detention of freemdom fighters including the country's first what?
Sentence (from "Heroes' Day (Kenya)"): Mashujaa Day, also known as Heroes' Day ("mashujaa" is Swahili for "heroes"), is a national day in Kenya, which is observed on 20 October as a public holiday to collectively honour all those who contributed towards the struggle for Kenya's independence or positively contributed in the post independence Kenya.
Relevant evidence: Yes