Who the first secretary of state

Which two factors caused many americans to migrate to the west in the mid-nineteenth century? pick two the texas revolution discovery of gold at sutter’s mill the mexican-american war an interest in american indian culture cheap land prices

Me i really need which of these was an accomplishment of the han dynasty? the invention of the seismograph finding a water passage to europe the invention of the ballpoint pen the invention of the abacus

What did the japanese regard as the main purpose of the attack