Juan de Oñate, (1550—1630), was an explorer who was said to first
visit the U.S. river that created a
boundary between America and Mexico. Thus, he established the colony of New
Mexico for Spain. Oñate became successful in settling in the present-day
Southwestern America.
They protested the abolition of slavery.
Laissez faire is french for "hands off" and the government idea reflects that. In a government that does that, they leave business to do what it wants, with few regulations. So, those people are referring to a free market, uncontrolled by the government.
D.
If you look at most of those paintings they are about nature