Symboles et histoire britannique : 1066 à 2022

Identify the correct British symbol or historical fact based on the descriptions provided. 1. What is the official name of the British flag? 2. The year $1066$ is famous for a major battle in English history. What is the name of this battle? 3. The current British monarch is King Charles III, who ascended the throne in the year $2022$. Calculate how many years have passed since the Battle of Hastings ($1066$) until his coronation in $2022$.