It was mainly developments in the "steel" industry that made important contributions to improvements in the transportation system in the United States during this time, since the major advancement in transportation was in the railroads, which were made from steel.
Answer:
One of the greatest mergers of all time,United airlines merged with Continental to create a monopoly at Houston international airport.
Explanation:
The U.S. Constitution is based on several principles of American democracy. Yes, it is reflected because the amendments list the powers given to the individual people.
To combat the Kansas-Nebraska act and the expansion of slavery to American territories.
<span>-The Maya established city-states, united by a common culture but not unified by a common political or military system.
-Their achievements were artistic, agricultural, and architectural.
-The Toltecs were less influential culturally, but more influential in the areas of politics and the military.
-They were more politically homogeneous, were under centralized rule, and expanded their control through military conquest.</span>
