How did ghettos differ before the holocaust

The word and idea of ghettos was not born during the Holocaust era. In fact, the concept was born in 1516, in Venice, and the word comes from a combination of Italian and Jewish languages. The ghettos were primarily for Jewish minorities of the diaspora, who settled outside of their Promised Land. However, they also became the place for other such minorities. Although isolated from the main cities, and with their own systems, and with high levels of poverty, these ghettos were not used as jailing systems where people would be tortured, mistreated, or concentrated to be killed. They were simply like isolated neighborhoods where these minorities settled.

But during the Holocaust the idea changed. Hitler used the ghetto system and transformed it into the forefather version of concentration camps. Literally, ghettos like those in Poland became places of incarceration, where there was absolute poverty, lack of sanitation, and death, and these places were reserved for Jews, or people suspected of having Jewish blood. In the end, they simply became holding centers until the Jews could be sent to concentration camps.

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals