While LGBT rights have evolved dramatically in the UK, one small member country bordering the Republic of Ireland has lagged behind and was the last to legalise what?
LGBT rights in Northern Ireland: Lesbian, gay, bisexual, transgender (LGBT) rights in Northern Ireland are the least advanced in the United Kingdom and Ireland, lagging behind Great Britain and the Republic of Ireland respectively. LGBT rights in Northern Ireland:  It was the last country in the United Kingdom to legalise same-sex sexual activity, the last to end a lifetime ban on blood donations by men who have sex with men and since 2015 is the only part of western Europe to prohibit same-sex marriage. LGBT rights in the United Kingdom: Lesbian, gay, bisexual, and transgender (LGBT) rights in the United Kingdom have evolved dramatically over time.
same-sex sexual activity