Question

What religion experienced the lowest increased, both in percentage and in numbers, between 1800 and 2014?

Answer 1

The religion that experienced the lowest growth rate for the past 2 centuries is Zoroastrianism. It is one of the world's oldest religions, believed to originate 4000 years ago and follows the teachings of the spiritual leader Zoroaster. It was the state religion of three Persian dynasties. The concept including judgement after death, heaven and hell etc is likely to have influenced other religions also. The current number of Zoroastrians is estimated to be between 110000-120000 around the globe. It has changed from merely around 60,000 in the 1800s to the present level. The percentage of growth is very less compared to other religions.