Mayotte – Travel guide at Wikivoyage

Mayotte was ceded to France along with the other islands of the Comoros group in 1843. When Comoros voted for independence in the 1970s, Mayotte decided to remain a French “collective”. In March 2009, the islands voted overwhelmingly (95.2%) to become France’s 101st ‘departement’ effective in 2011.

: https://en.wikivoyage.org/wiki/Mayotte