The Battle of Grand Gulf was fought on April 29, 1863, during th: UK labour laws entitle staff to have a minimum set of employment rights including a minimum wage, a minimum of 28 days annual holiday, statutory sick pay and a pension. Same-sex marriage has been legal in England, Scotland, and Wales since 2014, and in Northern Ireland since 2020.[233] LGBT equality in the United Kingdom is considered advanced by modern standards.[234][235]