What highly respected american war hero and general came out of retirement to
oversee the constitutional convention?

a. benedict arnold
b. george washington
c. horatio gates
d. andrew jackson

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity

porter is writing economic history because he is focusing on the cost of developing vaccines.

there is no photo, therefore i can not answer your question.