Australian Energy Week begins (until 22 June)

Juneteenth public holiday in the US, marking the emancipation of enslaved African Americans

International Day for the Elimination of Sexual Violence in Conflict

Start of Heart Failure Awareness Week (until 25 June)

World Sickle Cell Day

Start of World Continence Week (until 25 June)

Start of Learning Disability Week (until 26 June)

Birthdays for Aung San Suu Kyi (1945), Salman Rushdie (1947), Boris Johnson (1964), and Paul Dano (1984)

Anniversary of:
• the first celebration of Father’s Day in Washington state (1910)
• the British Royal Family renouncing its German names and titles and adopting the name of Windsor (1917)
• The Rocky Horror Picture Show musical debuting in London (1973)
• Garfield, created by Jim Davis, first appearing as a comic strip (1978)