Which inventor improved thomas newcomen's atmospheric engine and patented the machine

Which of the following groups of sentences most accurately describes the cuban missile crisis?

This essay was published in 1788 in response to an article that argued against the ratification of the u.s. constitution. he tells you that the president will have more power than many in princes in according to the essay, what is the effect of dividing control of the military power of the united states between congress and the president?

Which of the following brought about the final settlement of the official boundary lines of the state of texas? the peace treaty of the mexican-american war the 1845 act signed by the president that made texas a state the reincorporation of texas at the end of the civil war the compromise of 1850