Hesiod ( or ; Hesíodos) was a Greek poet generally thought by scholars to have been active between 750 and 650 BC, around the same time as Homer. His is the first in European written poetry in which the poet regards himself as a topic, an individual with a distinctive role to play. Ancient authors credited Hesiod and Homer with establishing Greek religious customs. Modern scholars refer to him as a major source on Greek mythology, farming techniques, early economic thought (he is sometimes considered history's first economist), archaic Greek astronomy and ancient time-keeping.