You state that "the Warsaw Ghetto was cleared out in 1942". This is not correct - approximately 50,000 remained. The Ghetto was finally cleared out and destroyed in April 1943, after the Ghetto Uprising was crushed. I'm rather surprised to find such an error in "Tablet"!
U.S. says working on initiative to de-escalate Syria fighting, with focus on Aleppo (Reuters)
from the article: For first time, Poland marks deportation of Jews from Warsaw Ghetto