The exact time when humans first started believing in God or became religious is difficult to determine because it predates recorded history. The development of religious beliefs and practices likely occurred gradually over thousands of years, and it's challenging to pinpoint an exact moment.
Based on archaeological and anthropological evidence, it is believed that religious practices emerged in prehistoric times. Some of the earliest evidence of possible religious beliefs can be traced back to the Paleolithic era, which began around 2.6 million years ago and lasted until about 10,000 BCE. During this time, early human societies engaged in rituals and burial practices that suggest some form of spiritual or religious belief.
As human civilizations progressed, religious beliefs became more sophisticated, diverse, and integrated into various cultures and societies. Ancient civilizations such as the Sumerians, Egyptians, Greeks, and others had well-established religious systems dating back several millennia.
It's important to note that the concept of "God" or deities varies across different cultures and historical periods. The evolution of religious beliefs and the idea of a supreme being have been shaped by a complex interplay of cultural, social, and psychological factors throughout human history.
In summary, the belief in God and the development of religious practices are deeply rooted in human history and have evolved over a vast expanse of time, with no specific pinpointed moment of origin.