There cannot be a number for formal religions in the world today because the definition of formal is subjective to the user of the phrase. Whether a religion is formal or not is opinion, so there could be any number of religions in this time.
As many as there are people. But if you are asking how many formal religions in the world, that is a different question. According to adherents.org, their database has 4,300. We'd be surprised just how many faiths there are!
There are many religions in the world today, and during ancient times. Most people identify with a religion, or a mix of several religions.
Of the monotheistic religions (religions that believe in one God), Judaism is the oldest. Of the surviving polytheistic (religions that believe in many gods), Hinduism is the oldest.
Well there are 270 large , strong and religious groups
Hundreds of millions, you see, all non-Abrahamic religions are Pagan.
There are many smaller and new religions such as Scientology, it may not be small but it is new... if you want to know more Google it :)
Islam, Muslim, Christianity, Hinduism, and Buddhism were all before 1500 and are all major religions today.
Each person has their own individual views on the world and since each person has their own opinion then you could say that there are as many religions as there are people. According to Wikipedia there are about 446.
Approximately 2000 exist around the world.
there are over 50 religions around the world
The Heathen's Guide to World Religions has 206 pages.
No. Nero hated chrisians and wanted to have an excuse to hurt them. I don't know if it is exactly like this, but I think he ordered his soldiers to do it and then blame the christians. They were persecuted by many in Rome back then.