| 1519 |
Hernando Cortez landed Spanish force at Vera Cruz |
| 1521 |
Aztec empire capital city of Tenochtitlan fell |
| 1530 |
Nuño de Guzman destroyed Tarascan kingdom and trade route approaches to northern Piman territory from south |
| 1539 |
North African Estebanico and Italian Fray Marcos reached northern Piman territory |
| 1540 |
large Spanish expedition under Vásquez de Coronado passed through northern Piman territory |
| 1542 |
aboriginal conditions in northern Piman country at an end with departure of Vásquez, results of Mixton War |
| 1598 et. seq. |
northern Piman country brought back into contact with area of Spanish sovereignty and infectious epidemic region |
| 1645 |
Franciscan missionaries from New Mexico reached northern Piman country |
| et. seq. |
New Mexican Spaniards established maize trade with northern Pimans |
| 1680 |
Pueblo Revolt destroyed New Mexico, unleashed southern Athapascan hostiles on Sonora |
| 1687 |
first Catholic mission founded within northern Piman territory |
| 661 1691 |
first documented visit of Europeans to Santa Cruz River Valley in vicinity of Tubac, by missionary with escort |
| 1692 |
New Mexico recolonized by Spaniards |
| 1726 |
Tubac first identified by name by Father Joseph Agustín de Campos from Mission San Ignacio de Caburica |
| 1732 |
May 4 Jesuit missionary Juan Baptista Grazhofer installed at Mission Holy Angels Gabriel and Rafael at Guebavi with Tubac as a visita |
| 1740 |
Spaniards were living at Tubac managing a mission farm and ranch by this year |
| 1744 |
infectious epidemic at Guebavi Mission |
| 1747 |
infectious epidemic at Guebavi Mission |
| 1749 |
infectious epidemic at Guebavi Mission; northern Pimans fight Seris with Spaniards |
| 1751 |
infectious epidemic at Guebavi Mission; November 20-21-northern Piman Indians rebelled, threw Spaniards back to San Ignacio, Santa Anna and San Luís Valley with heavy losses; no deaths at Tubac whose residents fled to Tres Alamos |
| 1752 |
January 4-2,000 northern Pimans decisively defeated at Aribaca; March 18-Captain General of the Pima Tribe Luís Oacpicagigua surrendered to Captain Joseph Díaz del Carpio at his encampment at Tubac, ending the Pima Revolt; late March-Tubac natives returned to their settlement for spring planting season; March 26-Upper Pimería Company founded at San Ignacio |
| 662 1752 |
June 2 Governor Diego Ortiz Parrilla ordered the new company garrisoned at Tubac with an outpost at Ocuca; October 14-New Spain's Viceroy Don Juan Francisco de Guemes y Horcasitas, Count of Revilla Gigedo, approved Ortiz Parrilla's actions which he had authorized on the previous January 30th. |
| 1759 |
September 7, Captain Juan Tomás de Beldarrain, founding commander of the Upper Pimería Company and royal fort of St. Ignatius Tubac died; Charles III acceded |
| 1760 |
February 19, Captain Juan Bautista de Anza took command of Tubac |
| 1766 |
Field Marshal Don Calletano María Pignatelly y Rubí, the Marqués de Rubí, inspected the Tubac post and company |
| 1767 |
Members of the Society of Jesus were expelled from New Spain on orders of King Charles III |
| 1768 |
Colonel Domingo Elizondo arrived in Sonora with giant military expedition to crush Indian opposition on Sonora's Gulf of California coast, utilizing presidial troops as well; Members of the Order of Friars Minor arrived to replace Jesuits In U pper Pimería, including the great missionary explorer Fray Francisco Garcés who went to Bac with an escort of Tubac troopers |
| 1770 |
Captain Anza took time from the Gulf Coast campaign to pacify the Pápagos and arrange Indian affairs at Bac and Tucson |
| 663 1771 |
Elizondo campaign came to successful close, presidial troops returned to posts and Apache border warfare; Father Garcés explored west of the Colorado River |
| 1772 |
May 2, Captain Anza proposed to the viceroy his exploring a land route to Upper California; New Regulations |
| 1774 |
January-May, Anza led the first military expedition from Sonora to Upper California; -frontier officers were inspecting sites for relocation of forts in accord with the New Regulations |
| 1775 |
August, Commadant-Inspector Hugo O'Conor inspected Tubac and its new site at Tucson which he approved; -Anza returned from Mexico City with orders for a new colonizing expedition to Upper California which rode out of Tubac on October 23; -acting post commander Lt. Juan M. Oliva transferred the garrison to Tucson after October 23 (probably early in 1776) |
| 1776 |
Tucson definitely established as a royal fort, leaving only civilians with a guard detail at Tubac; -Anza returned from Upper California but was promoted and transferred from Tubac company |
| 1777 |
Tubac citizens wished to abandon the place but were prevented by Captain Pedro de Allande y Saabedra of Tucson; Frontier Provinces Commadant-General the Caballero de Croix left to Colonel Anza the decision on returning the garrison to Tubac, a dvancing it, or keeping it at Tucson |
| 664 1779 |
Tubac citizens joined colonists at Colorado River |
| 1783 |
Tubac was abandoned by this date |
| 1786 |
Viceroy Galvez initiated new Apache policy |
| 1787 |
St. Rafael Pima Indian Company transferred to Tubac |
| 1788 |
The Great Offensive against southern Apaches brought wholesale surrenders of southern Athapascan bands in later years and effective pacification of the frontier |
| 1816 |
Tubac suffered heavy mortality in smallpox epidemic |
| 1821 |
first visit of a reigning Catholic bishop at Tubac; -September, last Spanish Viceroy recognized Mexico's independence from Spain as a result of actions of Spanish officers throughout the viceroyalty; -Santa Cruz River Valley land rush which began the year before was in full swing |
| 1826 |
Mexican national congress recognized the existing frontier presidial system including the Tubac post |
| 1828 |
Spaniards (with certain exceptions) expelled by Mexico; principal effect in Upper Pimería was departure of most Franciscan missionaries including Tubac's acting military chaplain |
| 1832 |
large scale defection of peaceful Apaches from frontier posts, returning to economic raiding; Tubac Apaches stood fast; deterioration of presidios accelerated |
| 1848 |
December, Apache raid killed 9 Tubac residents, triggered flight of survivors to Tucson and Bac where Indians from Tumacacori moved; Gold Rush began in Sonora and contributed to Tubac's abandonment |
| 1849 |
Thousands of North American emigrants pass through Tubac en route to the California gold fields |
| 1851 |
Mexican military colony established at Tubac after mid-September with strength of less than 100 |
| 1852 |
Mormons induced to start commercial farming at Tubac to supply emigrants and garrison forced out by drought |
| 1853 |
July 17, Peaceful Apache ranchería of 120 persons returned to Tubac from Tucson |
| 1854 |
January, hostile Apaches brought Tubac to verge of abandonment by stealing all animals of provision supply train near Santa Cruz; -September, news of ratification of Gadsden Purchase Treaty reached Tubac |
| 1855 |
Tubac again abandoned as Mexican troops withdraw to Santa Cruz military colony |
| 1857 |
Tubac Company mutinied with Santa Cruz company after a year without pay and five months on short rations |
