Why did germany and ireland produce the greatest number of immigrants during this time period?

Germany and Ireland produced the greatest number of immigrants in the nineteenth century because they had deplorable economies and living conditions.

Explanation:

First of all, the Irish passed a sever three-year lapse without crops to feed on, which led them to starve to death. Almost one million Irish died from that shortage of food. So, they emigrated to the U.S. to seek a better life. However, it was very difficult for them because we're one of the poorest immigrants the U.S. had ever had. On the other hand, Germans had a little bit more resources, nevertheless, the political condition of Germany in that time led them to look for a place with more rights, freedom, and condition of life because a revolution and unrest over suspicious behavior impacted them really hard, there were dangerous conditions in Germany at the time.

not to sure sdi, strategic defense initiative

mass production/ assembly line production