generate questions: The earliest evidence of human inhabitants of modern day Chihuahua was discovered in the area of Samalayuca and Rancho Colorado. Clovis points have been found in northeastern Chihuahua that have been dated from 12,000 BC to 7000 BC. It is thought that these inhabitants were hunter gatherers. Inhabitants of the state later developed farming with the domestication of corn. An archeological site in northern Chihuahua known as Cerro Juanaqueña revealed squash cultivation, irrigation techniques, and ceramic artifacts dating to around 2000 BC.
In which areas were the earliest human inhabitants discovered? {sep_token} What range of years are the oldest ruins from? {sep_token} Which vegetable were they found to have been farming? {sep_token} Around what year were the ceramic artifacts found to have been from? {sep_token}