Q: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
This artist's last finished work, which shows a mythical bird holding an easel and a wavy magic carpet going across from lower left to upper right, is Tempered Elan. His early works--influenced by Impressionism--include Autumn in Bavaria, and he wrote that "each period of culture produces an art of its own" in his book Concerning the Spiritual In Art. His work showing a person riding a white horse shared its name with a movement led by him and Franz Marc. Several of his works were titled Improvisation or Composition followed by a number; one of them, Improvisation 31 is nicknamed Sea Battle. Name this Russian-born painter who spent his productive years in Germany and painted The Blue Rider.
A:
Fine Arts