In ancient times when man had not quite got round to inventing the wristwatch, the most reliable source of telling the time was the sun, moon, and stars. There seems to be several opinions of who came up with the moon planting calendar first. Was it the Egyptians or the Babylonians? It is more than likely that each and every farmer had a planting calendar based on the moon phases, and there would be different variations depending on the geographical location. As their calendars where passed on through the generations they evolved to cover the different crops they tried to grow, and the more productive farming techniques used.