On This Day: April 1st

The Artemis II lunar flyby mission launches, marking the first crewed flight above low Earth orbit since Apollo 17 in 1972.

The 2016 Nagorno-Karabakh conflict begins along the Nagorno-Karabakh Line of Contact.

After protests against the burning of the Quran turn violent, a mob attacks a United Nations compound in Mazar-i-Sharif, Afghanistan, resulting in the deaths of fourteen people, including seven UN workers.

Serious Organised Crime Agency (SOCA) of the Government of the United Kingdom is enforced, but later merged into National Crime Agency on 7 October 2013.

Google launches its Email service Gmail.

An EP-3E United States Navy surveillance aircraft collides with a Chinese People's Liberation Army Shenyang J-8 fighter jet. The Chinese pilot ejected but is subsequently lost. The Navy crew makes an emergency landing in Hainan, China and is detained.

Former President of Federal Republic of Yugoslavia Slobodan Milošević surrenders to police special forces, to be tried on war crimes charges.

Same-sex marriage becomes legal in the Netherlands, the first contemporary country to allow it.

Nunavut is established as a Canadian territory carved out of the eastern part of the Northwest Territories.

Comet Hale–Bopp is seen passing at perihelion.