Scotland
1997 - Labour won general election, committed to reform, referendum on Scottish Parliament 74.3% yes
The Scotland Act 1998 - established the parliament, devolving primary legislative powers
Calman Commission - set up in 2007, recommended devolving power to set a Scottish rate of income tax
Scottish Act 2012 - gave power to own rate of income tax
2014 Independence Referendum - fronted by SNP and Better Together, result 55.3% remain
Scotland Act 2016 - more reserved powers transferred to Scotland like extra tax varying powers, control over certain welfare including Universal Credit