On 9 August 1920, the British Parliament passed the Restoration of Order in Ireland Act. It replaced the trial by jury by courts-martial by regulation for those areas where IRA activity was prevalent.
The partition of the Ottoman Empire was finalized under the terms of the 1920 Treaty of Sèvres. This treaty, as designed in the Conference of London, allowed the Sultan to retain his position and title. The status of Anatolia was problematic given the occupied forces.
On 22 August 1920, RIC Detective Swanzy was shot dead by Cork IRA men while leaving a church in Lisburn, County Antrim. Swanzy had been blamed by an inquest jury for the killing of Cork Mayor Tomás Mac Curtain.
In August 1920, UNIA organized the First International Conference of the Negro Peoples in Harlem. This parade was attended by Gabriel Johnson, the Mayor of Monrovia in Liberia. As part of it, an estimated 25,000 people assembled in Madison Square Gardens.