In Modernism, yes.
Earlier there was for example Luminism, an American landscape painting style of the 1850s - 1870s.
The noun 'union' is a word for an instance of uniting two or more things into one. The noun 'America' is singular, one.What this means is that there are two versions of your question:What is the union of America in common words?Answer: The union of America is the joining the individual states into a single country.What is the union of the Americas in common words?Answer: The union of the Americas in a physical sense is the area known as an isthmus joining the northern and southern continents. The union of the Americas in an abstract sense is the shared histories and cultures of the continents.
The French came to the Americas for wealth. They were in the fur trade throughout the Americas.
DKMS Americas's population is 30.
Hudson never reached the Americas.
The cowboys are nicknamed Americas team
Bridge of the Americas was created in 1962.
Plaza of the Americas was created in 1925.
Hummingbirds of the Americas was created in 2001.
Americas Quarterly was created in 2005.
DKMS Americas's population is 30.
Claro Americas was created in 2003.
Tower of the Americas was created in 1968.