Buddha was born in India between 5th to 4th BCE. He is the founder of Buddhism. His teachings are based around Duhkha (suffering) and how to end it.
Karma in simple terms means action. It is the spiritual equivalent to Newton’s Law of motion – for every action there is an equal reaction.
Man created God as per his vision of the higher power. Early depiction of him was in the form of energy or just the earthily elements one could see around.