Missouri Compromise
The Missouri Compromise split the Louisiana Territory with the North being free from slavery and the South being allowed to have slavery.
The issue of slavery was a rising concern and with each state entering into the Union the balance of slave and free states was skewing. With a new land mass to be concerned with, the government needed a compromise to deal with new states coming into the Union in an effort to maintain slave v. free states. Missouri was entered as a slave state and Maine entered as a free state. The compromise also set the 36'30 line splitting Louisiana Territory. The compromise would last until 1850.
Richard went gallently off to war, leaving his brother, an incompetent ruler, in his stead. John was so bad that the Magna Carter was signed on his watch. That was helpful because it took some of the monarch's power away. It didn't help everyone since it only gave rights to some of the nobility, but it was a start.
That was one effect of the crusades in England. Richard the Lionhearted likely would have had the same difficulties that John had to cope with. Richard was not a great politician (he put rebellions down with force), but he was a very gifted military technician. John faced the problem of having not much of an army to resist those wanting him to sign the Magna Carta. That should get you started.
Answer: The Invention of the timer gear on fighter aircraft, the monoplane and more advanced aircraft such as fighter and bombers. the tank, the submarine, the machine gun, the dreadnought, the semi-auto rifle, chemical weapons, and the sub-machine gun. The tank, the submarine, the machine gun, semi-auto rifle, and the sub-machine gun are all still used today.
Explanation:
They are on the west side of the country and new mexico and Colorado Wyoming Idaho Montana are all in the USA
