Excelsior is the official state motto of New York. It is derived from the Latin word meaning "higher," "upward" or "more elevated".
The word _excelsior_ is associated with the ascent to something higher, better or more exalted. When used as a proper noun, it was first used as a state motto by New York in 1778, and was placed between a mountain range and the sun rays on a state seal designed by Pierre van Berckel in 1777.
The use of the motto _Excelsior_ has spread to other areas, including the names of hotels, schools, corporations and sports teams. In literature and entertainment, Longfellow popularised the concept in his 1842 poem _Excelsior_, which used it as a motivational call for the main character to move upward despite numerous challenges.
In other parts of the world, _excelsior_ is occasionally used in contexts of motivation, improvement or accomplishment, but it has no particular cultural relevance.