Answer:
Her unique paint style ( She played an important role in the beginning of modernism and other European art movements)
She painted nature that described how she felt about nature.
The writing system would date back to the reign of the Shang Dynasty.
Polk was a massive supporter for Manifest Destiny, so an encouragement for expansion was something he definitely wanted. Not to mention the conflict over Texas with Mexico. Even more so, the conquest of California was a dream for many Americans, something that was theirs to be taken and that would lead the U.S to expand into the Pacific, and Polk was a big supporter.