We all don't know how many "Japanese " troops went 'missing' but I'd say approximately 149,425 of the troops went missing during the World War Two
A historian compares the events by period since he compares them by time period
I believe the answer would be cotton gin because the invention of the cotton gin was able to become more efficient in harvesting cotton.
Yes, that's a true statement.
Answer: Geronimo
Explanation: I hope this helps :)