He wanted to rid Germany of the Jews and ethnically cleanse it to have a pure race. <span />
A. Cotton gin
The South was based on agriculture, which means lots of cotton was produced. The cotton gin is a machine which made this much easier.
People settled in Delaware for 2 reasons mostly. One was that Delaware accepted different religions without any discrimination. The second was that the land itself was rich with nutrients and similar things and was great for having farms.