Religions are based upon belief systems of our ancestors who had no scientific understanding of natural phenomenon & thus attributed them to gods. But now , when we know , it is better to stick to science as it is based upon truths found by experimentation. see more below :
http://originofmanandhisreligion.blogspot.com/
I will reproduce from the blog :
(1) MANKIND LIVED NEAR VOLCANOES IN AFRICA
It is known scientifically from genetic research that mankind (homosepians) originated from a very few (about 1000) people in AFRICA .
This means that our ancestors are from Africa. And we all belong to one race/species. Genetically we are all equal.
One of the oldest human fossils ( about 1 million year old) were found in northern Ethiopia near active volcanoes ( the fossil is named as Lucy). This place is called "Danakil depression". Here we have volcanoes in the shape of large lava pools. (See it in google earth).
Just imagine the life of man living near volcanoes. Volcanoes mean fire , earthquakes , thunder , rain , lightening & lava flow all happening simultaneously . The lava of volcanoes probably killed many primitive humans and animals living nearby. The primitive man with primitive thinking might have imagined the natural calamities as the wrath of spirits. It is possible that mankind started worshiping the fire god (actually volcanoes). And, in order to make them calm , he might have thought that the gods/spirits wanted killings of humans & animals. And he started sacrificing animals in fire as a ritual , as a pre-emptive measure, in order to please the fire god as a matter of reverse logic to keep the imaginary gods satisfied and not to create any further trouble.
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