8.30am (AEST) – Australia’s uniform for the opening ceremony of the Paris Olympics to be revealed – Sydney

9.00am (AEST) – IOC VP John Coates and Brisbane 2032 review head Graham Quirk to attend a Senate hearing into Australia’s Olympic preparedness – Brisbane

9.00am (AEST) – The Australian Swimming Championships kick off (until 20 April) – Gold Coast

10.00am (AEST) – The case of Iranian immigration detainee ASF17 to be heard by the High Court of Australia – Canberra

12.30pm (AEST) – Defence Minister Richard Marles will address the National Press Club on the national defence strategy – Canberra

6.30pm (AEST) – Auction of a significant Arthur Streeton painting of Sydney Harbour from 1894, Sunlight at the Camp, thought lost for 130 years – Sydney 

Solomon Islands general election

Youth Homelessness Matters Day

World Haemophilia Day 

Syria’s National Day 

International Haiku Poetry Day

World Circus Day

Banana Day

Birthdays for Barnaby Joyce (1967), Jennifer Garner (1972) and Victoria Beckham (1974)

Anniversary of:

• the invention of modern snooker by Sir Neville Chamberlain (aka not the former UK PM…) (1875)
• the premiere of Game of Thrones on HBO (2011)
• the deaths of Benjamin Franklin (1790), Linda McCartney (1998), Gabriel García Márquez (2014) and Barbara Bush (2018)