-1945: The end of World War II and the election of Clement Attlee's Labour Party, which introduced the National Health Service (NHS) and the National Insurance Act.
1950: Labour Party loses the general election to the Conservative Party, led by Winston Churchill, who becomes Prime Minister for the second time.
1964: The Labour Party, led by Harold Wilson, wins the general election and begins a period of economic and social reform.
1970: The Conservative Party, led by Edward Heath, wins the general election, but is unable to form a stable government and calls for a new general election in
1974: The Labour Party, led by Harold Wilson, wins the general election, but is unable to form a stable government and calls for a new general election in October.
1974: Labour Party led by Harold Wilson wins the general election in October and forms a minority government.
1976: The Conservative Party, led by Margaret Thatcher, wins the general election and begins an era of neoliberal economic policies.
1979: The Conservative Party, led by Margaret Thatcher, wins the general election, beginning an era of neoliberal economic policies.
1997: Tony Blair's Labour Party wins a landslide victory, introducing policies such as the minimum wage and devolution for Scotland and Wales.
2010: Conservative Party and Liberal Democrats formed a coalition government
2015: Conservative Party led by David Cameron wins the general election, beginning a period of austerity measures and the Brexit referendum.
2016: The United Kingdom voted to leave the European Union in a historic referendum.
2017: Conservative Party led by Theresa May loses majority in general election, leading to a hung parliament and a minority government.
2019: Conservative party led by Boris Johnson wins a majority in general election, resulting in the UK leaving the EU on January 31, 2020.