You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Han_dynasty

Context:
Buddhism first entered China during the Eastern Han and was first mentioned in 65 AD. Liu Ying (d. 71 AD), a half-brother to Emperor Ming of Han (r. 57–75 AD), was one of its earliest Chinese adherents, although Chinese Buddhism at this point was heavily associated with Huang-Lao Daoism. China's first known Buddhist temple, the White Horse Temple, was erected during Ming's reign. Important Buddhist canons were translated into Chinese during the 2nd century AD, including the Sutra of Forty-two Chapters, Perfection of Wisdom, Shurangama Sutra, and Pratyutpanna Sutra.

Question:
During was era did Buddhism first appear in the region?

Eastern Han