There were many cultural achievements which ocurred during the Yuan Dyansty, such as:
1. porcelin glaze was invented
2. smaller cups with dainty stems were used widely, and the design for them was perfected under the Yuan (see picture on right)
3. Bead patterns and more geometric designs were used, both in painting and especially pottery
4. white ceramics became incredibly popular under the Yuan Dynasty
Part of the reason the Mongol's had so much success in China is because they still allowed Chinese culture to flourish, not morphing the Chinese identity too drastically, therefroe placating the people and keeping their hold on China strong.