According to Islamic sources, creation began six thousand years before the advent of Islam. The first thing to be created was the planet Earth, which took two days to complete, from Sunday to Monday. Then it took another two days to create the mountains, trees, and everything else. The final two days, Thursday and Friday, were spent creating the "heavens", the sun, moon, other planets, and a sixty cubits (approximately ninety feet) tall Adam.
Hawwa' (Eve) was created from Adam's left rib, whilst he was asleep in the Garden. She is blamed by Adam for persuading him to eat from the forbidden tree. As a result, they are both cast out from the garden in Paradise and sent down to the planet Earth, where their decedents continue to decrease in size.
As punishment for her transgression, Allah makes Eve menstruate, suffer pregnancy and become stupid. Therefore, according to Islamic beliefs, today all women menstruate (are deficient in religion) and are created stupid (deficient in intelligence). (read more)