Correct the wrong sentences and tell the reason.

China's calligraphy has a long history and is a treasure of our national culture. (Etiology: 1, improper collocation of words, it should be a long time ago. 2. The references are unclear. )

2. Learning and appreciating calligraphy can increase the aesthetic feeling of writing, enhance the understanding of national culture and cultivate elegant aesthetic taste. (1, improper collocation of words can't be said to promote love. )