Which was the most major cause of foreign interest in persia?

Which of the following inventions most directly allowed ancient farmers to produce a surplus ?

What was one of the difficulties adams faced as president? a. european countries were trying to move back in on u.s. lands b. possible war with england; fighting between political parties c. problems with spain; trade disputes with russia d. census issues; problems with selecting a new capital

How did tyrants attempt to gain the approval of common citizens in ancient greece?