Yes, it is true that the most prominent member of the dynasty was Peter the Great, since he played a fundamental role in transforming Russia from a "backwards" state into a more modern state that could compete with Europe. <span />
In 1793, Eli Whitney invented a simple machine that influenced the history of the United States. He invented a cotton gin that was popular in the South. The South became the cotton producing part of the country because Whitney's cotton gin was able to successfully pull out the seeds from the cotton bolls.
The last one should be the correct one