Simplify the following text for a Grade 7 native English-speaking person.
Original: In February 2008 , the official English name for the group was changed from the Romanized Japanese Kofuku-no-Kagaku to the English rendering `` Happy Science '' .
Simplified: In February 2008 , the group changed its official English name . It had been called Kofuku-no-Kagaku , which is a Romanized version of the Japanese name .