Bahai originates from Islam. Though Islam is more popular, Bahai is growing worldwide. Those that follow Islam are called Muslims, while those that follow Bahai are called Bahais. Each religion has its holy book. Quran is the holy book for Islam.
Kitab-i-Aqdas is the holy book for Bahai. Islam gets its principles from their holy book, as well as the teachings of the Prophet Muhammed. Bahai focuses their principles on science, equality, and peace. The religion of Islam teaches its followers only to study their word, while Bahai encourages their followers to study and learn about all religions like Christianity and Buddhism.