Day of the Vow
The Day of the Vow (Afrikaans: Geloftedag) is a religious public holiday in South Africa. It is an important day for Afrikaners, originating from the Battle of Blood River on 16 December 1838, before which 464 Voortrekkers made a promise to God that if he rescued them out of the hands of the approximately 16,000 Zulu warriors they were facing, they would honour that day as a sabbath day in remembrance of what God did for them.