Muhammad flight from Mecca to Yahtrib became know as the hijra and its marks the first year of the Islamic calendar.
First of all, efficiency means the ability to being able to do something successfully with no wasting energy or time.
The founding fathers thought that order and effiency were important but they were not as powerful as liberty of the individuals. So even if the Constitution should be ruled by those aspects some blocks were needed to govern and take out aut authoritarianism.
The official policy was neutrality
President Lincoln.
The Secession were basically the Southern states that withdrew from the Union to form the Confederacy.
