Answer:
the gold rush era.
Explanation:
The earliest presence of Jews in America dates back to "the gold rush era."
The gold rush era was around the year 1848 to 1855 in the Sacramento Valley, California.
This tally with the period when the first wave of European Jews first came to America which is around the year 1820. According to the historical records, the population of the European Jews in America at the time was around 3,000
James watt and Chester Carlson
He built a stream powered boat
