The first known conjoined twins were born in Thailand in 1811.

An excerpt from the article 31 facts about Thailand

The city of Lop Buri (Monkey City) hosts a monkey festival every November. This takes place in front of the Pra Prang Sam Yot temple. Residents prepare over 2 tons of food for the monkeys living around the temple. Thais believe that the respect they show to monkeys will ensure their success in all areas of life.