 Complete the following phrase:  Over the next 20 years, word spread throughout the Ohlone tribes, including the Zayante Indians, that the Santa Cruz Mission would provide a regular source of food, even through the winter, warm shelter in the winter, clothes made from woven fabrics a miracle to the Native Americans, manufactured items also miraculous both useful pots and pans and curious trinkets such as glass beads, etc., and education, if they came to live at the mission. Unfortunately, once lured to the mission by these things, the Indians became virtual indentured servants. In fact, for the Mission system to work it required the services of large numbers of workers to till the gardens, construct and maintain buildings, etc., something which New Spain Mexico was unable to provide because few there were willing to relocate to what was considered the harsh and primitive environment of Alta Upper California. The missionaries truly believed they were benefiting what they considered barbaric people through teaching them the manual skills of carpentry, European farming techniques, etc., and through civilizing them to the Spanish  European religious and cultural beliefs and practices. This process shattered the ancient native culture wherever it was exposed to it. In addition, diseases which were mostly annoyances to their European hosts decimated the Indian populace, and only small groups remained after 1820. In 1821, Mexico achieved its 