Health insurance is clearly a commercial activity occurring among several States. “power to lay and collect taxes, duties, imposts and excises, to pay the debts and provide for the common defence and general welfare of the United States.”
Nonviolent Resistance. He led the massive Salt March to the capital as a peaceful protest.
The main result of Columbus' voyages across the Atlantic was that a "New World" was discovered in which resources were plentiful--meaning that these resources were shipped back to England and Europe. Another result is that millions of Native people were killed or displaced.