Our world is about 4.5 billion years old. Modern Homo Sapiens emerged about 300 000 years ago.
“The world was 42 000 years old when Adam was created”. Aryeh Kaplan
Man had developed the physical and mental capacities that we possess about 25 000 years ago, prior to the creation of Adam.
There were men on Earth prior to Adam. Adam was created 6000 years ago. There were 974 generations before Adam. In ancient times a generation was much longer than 30 modern years.
Adam was not the first man!
Adam was the first of a new type of man. He was the first man with self-awareness and consciousness of past, present and future.
The Torah states that “The sons of God (Adam and his immediate descendants) saw the daughters of man that they were fair and they took for themselves wives from all whom they chose”.