Hesiod was a Greek poet who lived and wrote during the time of Homer (between 750 and 650 B.C.E).  From his writings we have one of the first developmental theories, not about the individual stages of life, but rather about how humanity develops over time.  He believed there were five ages of humankind, four of...Read More

The ancient Greek lawgiver Solon divided the human life cycle into ten stages of seven years each: 0-7     –  A boy at first is the man; unripe; then he casts his teeth; milk-teeth befitting the child he sheds his 7th year; 7-14   –  Then to his seven years God adding another seven, signs of...Read More