Answer:
The creation of a Congress to carry out the will of the people.
Explanation:
Republicanism outlines the will of citizens of a nation, by choosing a representational government in which they elect representatives for a particular time, and laws are enacted by such representatives for the good of the nation as a whole, rather than choosing members of a ruling elite. It reflects the notion that a nation is governed by the will of people and the elected leaders will return original work after serving the republic for a fixed time as is the case of the United States of America.
Broadly Speaking, the differences between Protestants (of which there are many subsets) and Roman Catholics are:
The Bible:
Protestants see the Bible as the sole source of God's wisdom while Catholics are influenced by centuries of Church teaching and insight
The role of Good Works:
Protestants believe that salvation comes from faith alone while Catholics believe that faith must be accompanied by good works.
The Pope:
Catholics believe that the Pope is the successor of Saint Peter while Protestants don't see much Biblical authority for even having a Pope.
The Eucharist:
This is the big one. Con v. Transubstantiation. Catholics believe that you are eating the body and blood of Christ while Protestants believe it is a symbol.
Others:
Role of Mary, Saints, etc.
Role of the Sacraments
Priestly celibacy
Some beliefs in the constitution have shifted in multiple ways. The biggest example is the concept of freedom. The constitution states the ideals of freedom for men. The American people have constantly changed their definition of a man. Where African Americans were once treated as property, now they have the same freedoms and rights as every American citizen. Furthermore, the ideals of women’s rights have been changed to fit into the mold of the constitution. There are multiple other changes of the understanding of the constitution, but this one is most relevant.