When did ancestors of modern-day humans first appear?
around 10,000 b. c.
around 200,000 b. c.
around 3500 b. c.
around four million years ago

Explanation:

Our earliest human ancestors appeared around five to seven million years ago, and Homo sapiens, our species, came onto the scene around 200,000 years ago.

the answer wold be b) travel among nations should be regulated by an international organization

the pogroms became known as kristallnacht, the "night of shattered glass," for the shattered glass from the store windows that littered the streets. the morning after the pogroms 30,000 german jewish men were arrested for the "crime" of being jewish and sent to concentration camps, where hundreds of them perished.