The Kingdom of Iraq slaughters over 3,000 Assyrians in the village of Simele. This date is recognized as Martyrs Day or National Day of Mourning by the Assyrian community in memory of the Simele massacre.

The Hashemite Kingdom of Iraq was the Iraqi state located in the Middle East from 1932 to 1958. It was founded on 23 August 1921 as the Kingdom of Iraq, following the defeat of the Ottoman Empire in the Mesopotamian campaign of the First World War. Although a League of Nations mandate was awarded to the United Kingdom in 1920, the 1920 Iraqi revolt resulted in the scrapping of the original mandate plan in favour of a formally sovereign Iraqi kingdom, but one that was under effective British administration. The plan was formally established by the Anglo-Iraqi Treaty.

The Simele massacre, also known as the Assyrian affair, was a massacre committed by the Kingdom of Iraq under the leadership of Kurdish army general Bakr Sidqi. The massacre was committed against the Assyrian population of Iraq in and around the village of Simele in August 1933.

August 7 is the 219th day of the year in the Gregorian calendar; 146 days remain until the end of the year.