[4] It was established on 15 September 1919 from the lands conquered from the Socialist Soviet Republic of Lithuania and Belorussia by Poland.

[1] On 17 January 1920, it was incorporated into Provisional Administration of Front-line and Phase Territories.

[1] It was formed as a district of the civil administration under the control of Second Polish Republic, of the lands conquered by it during the Polish–Soviet War.

On 9 September 1920, the district was incorporated into, then formed, Provisional Administration of Front-line and Phase Territories.

Out of the peoplulation 64.5% identified themselves as Belarusian, 14.6% as Polish, 11.3% as Jewish, 3.5% as Locals, 0.2% as Lithuanin and 5.9% as others, mainly Russians.