The river was very useful for the European conquerors in the beginning of the expedition, and it was also crucial for the invasion of New France by England in the war of 100 years.
do you mean the?
The Articles created a loose confederation of sovereign states and a weak central government, leaving most of the power with the state governments. The need for a stronger Federal government soon became apparent and eventually led to the Constitutional Convention in 1787.
It would be "c. The building of transcontinental railroads" that provided the greatest boom to economic unification in both the U.S. and Canada, since this allowed for goods and services to be transported at unprecedented speeds and at much lower costs.
Answer:
Liberty meant freedom of religion, freedom of the press, and freedom from unreasonable government (torture, Censorship, and so on). Enlighenment writers, such as Voltaire, Montesquieu, and Rousseau's, influenced ordinary readers, politicians, and even heads of state all over the western world.
In the year 507 B.C., the Athenian leader Cleisthenes introduced a system of political reforms that he called demokratia, or “rule by the people” (from demos, “the people,” and kratos, or “power”). It was the first known democracy in the world.
(From History.com)
Hope this helps? :)