Article: Catholicism arrived 400 years ago in the province and Protestantism 150 years ago. Zhejiang is one of the provinces of China with the largest concentrations of Protestants, especially notable in the city of Wenzhou. In 1999 Zhejiang's Protestant population comprised 2.8% of the provincial population, a small percentage but higher than the national average.

Now answer this question: How many years ago did Catholicism arrive in the province?
400