The document discusses the history of embryology and what was known about human development at different points in time. It notes that early Greek thinkers like Aristotle had inaccurate ideas, and the microscope had to be improved before the structures like sperm and eggs could be observed. The Quran from the 7th century is then cited containing numerous accurate descriptions of human development that were not discovered scientifically until many centuries later, including developing from a sperm that joins an egg and then progressing through various stages. The document concludes that these Quranic descriptions prove Muhammad must have received this knowledge from God.