How old were you when Margaret Thatcher's new local government tax, the Community Charge (commonly known as the "poll tax"), is introduced …?

Margaret Thatcher's new local government tax, the Community Charge (commonly known as the "poll tax"), is introduced in Scotland.

Margaret Thatcher's new local government tax, the Community Charge (commonly known as the "poll tax"), is introduced … happened on 1989-04-01. If you were born in 1977, you were about 12 — set your birthday for your exact age.