History - Wieruszow Ghetto

Based off information on Wikipedia and The History Place - Holocaust Timeline:
The Nazis invaded Poland on September 1, 1939 and many Jews of Wieruszow were murdered that year.
Orders were made to gather Poland's Jews into ghettos 20 days later and the Wieruszow ghetto was established until 1941.
It had 1,400 residents and was liquidated in Aug 1942. Residents were sent to their deaths in the Chelmno death camp.

Sources:
Pg. 277 of The Wieruszow Yizkor Book - accessed on 6/4/2019 via https://www.yiddishbookcenter.org/collections/yizkor-books/yzk-nybc...
http://www.historyplace.com/worldwar2/holocaust/timeline.html - Accessed 6/4/2019
https://www.wikiwand.com/en/Jewish_ghettos_in_German-occupied_Poland - Accessed 6/4/2019