Question: Widely practiced in the region having the second largest rain-forest in the world, how long ago did this religion arrive in Zhejiang?

Knowledge 1: Southeast Asia
The climate in Southeast Asia is mainly tropical–hot and humid all year round with plentiful rainfall. Northern Vietnam and the Myanmar Himalayas are the only regions in Southeast Asia that feature a subtropical climate, which has a cold winter with snow. The majority of Southeast Asia has a wet and dry season caused by seasonal shift in winds or monsoon. The tropical rain belt causes additional rainfall during the monsoon season. The rain forest is the second largest on earth (with the Amazon being the largest). An exception to this type of climate and vegetation is the mountain areas in the northern region, where high altitudes lead to milder temperatures and drier landscape. Other parts fall out of this climate because they are desert like. [SEP] Knowledge 2: Zhejiang
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. [SEP] Knowledge 3: Amazon rainforest
Wet tropical forests are the most species-rich biome, and tropical forests in the Americas are consistently more species rich than the wet forests in Africa and Asia. As the largest tract of tropical rainforest in the Americas, the Amazonian rainforests have unparalleled biodiversity. One in ten known species in the world lives in the Amazon rainforest. This constitutes the largest collection of living plants and animal species in the world.
Knowledge 1: Southeast Asia
The climate in Southeast Asia is mainly tropical–hot and humid all year round with plentiful rainfall. Northern Vietnam and the Myanmar Himalayas are the only regions in Southeast Asia that feature a subtropical climate, which has a cold winter with snow. The majority of Southeast Asia has a wet and dry season caused by seasonal shift in winds or monsoon. The tropical rain belt causes additional rainfall during the monsoon season. The rain forest is the second largest on earth (with the Amazon being the largest). An exception to this type of climate and vegetation is the mountain areas in the northern region, where high altitudes lead to milder temperatures and drier landscape. Other parts fall out of this climate because they are desert like. [SEP] Knowledge 2: Zhejiang
Islam arrived 1,400 years ago in Zhejiang. Today Islam is practiced by a small number of people including virtually all the Hui Chinese living in Zhejiang. Another religion present in the province is She shamanism (practiced by She ethnic minority). [SEP] Knowledge 3: Amazon rainforest
Wet tropical forests are the most species-rich biome, and tropical forests in the Americas are consistently more species rich than the wet forests in Africa and Asia. As the largest tract of tropical rainforest in the Americas, the Amazonian rainforests have unparalleled biodiversity. One in ten known species in the world lives in the Amazon rainforest. This constitutes the largest collection of living plants and animal species in the world.
Knowledge 1: Southeast Asia
The climate in Southeast Asia is mainly tropical–hot and humid all year round with plentiful rainfall. Northern Vietnam and the Myanmar Himalayas are the only regions in Southeast Asia that feature a subtropical climate, which has a cold winter with snow. The majority of Southeast Asia has a wet and dry season caused by seasonal shift in winds or monsoon. The tropical rain belt causes additional rainfall during the monsoon season. The rain forest is the second largest on earth (with the Amazon being the largest). An exception to this type of climate and vegetation is the mountain areas in the northern region, where high altitudes lead to milder temperatures and drier landscape. Other parts fall out of this climate because they are desert like. [SEP] Knowledge 2: Zhejiang
Islam arrived 1,400 years ago in Zhejiang. Today Islam is practiced by a small number of people including virtually all the Hui Chinese living in Zhejiang. Another religion present in the province is She shamanism (practiced by She ethnic minority). [SEP] Knowledge 3: Southeast Asia
Islam is the most widely practised religion in Southeast Asia, numbering approximately 240 million adherents which translate to about 40% of the entire population, with majorities in Indonesia, Brunei, Malaysia and in Southern Philippines with Indonesia as the largest and most populated Muslim country around the world. Countries in Southeast Asia practice many different religions. Buddhism is predominant in Thailand, Cambodia, Laos, Burma, Vietnam and Singapore. Ancestor worship and Confucianism are also widely practised in Vietnam and Singapore. Christianity is predominant in the Philippines, eastern Indonesia, East Malaysia and East Timor. The Philippines has the largest Roman Catholic population in Asia. East Timor is also predominantly Roman Catholic due to a history of Portuguese rule.

Answer: 1,400 years