European Discovery
Sept 17, 1542 Juan Rodriguez Cabrillo records the bay during his Pacific coast expedition, sailing northward from New Spain. This was maritime exploration — Cabrillo did not found a settlement, and no continuous European presence resulted from the voyage.
November 1602 Sebastian Vizcaino remaps and renames the bay "Bahia de Todos Santos" (All Saints' Bay), arriving near All Saints' Day. Sources differ on the exact November date, but the name endured. Vizcaino's detailed charts became the standard European reference for the Pacific coast for over a century.
It is important to note that European "sighting" does not equal founding a city. These were naval expeditions charting the coastline. No permanent settlement was established during either voyage, and the Indigenous Kumeyaay and Kiliwa peoples continued to inhabit the region as they had for thousands of years.
The Mission Frontier
1772 A concordat divides Franciscan and Dominican jurisdictions. The Dominicans assume responsibility for Baja California's missions, while the Franciscans focus on Alta California to the north.
1773 Dominican missionaries arrive to take charge of the Baja California mission chain, inheriting a system already decades old but extending it southward and establishing new foundations.
March 28, 1787 Mission San Miguel Arcangel de la Frontera is founded at its first site, becoming a key node in "La Frontera" — the Dominican mission corridor that linked the peninsula's northern settlements. This corridor shaped overland travel and settlement patterns for decades.
1791 Mission Santo Tomas de Aquino is founded by Dominican friars. INAH (Mexico's National Institute of Anthropology and History) confirms this date. Although the physical remains have been largely lost, the heritage memory persists — and the mission's connection to the surrounding valley is the direct ancestor of the modern Santo Tomas wine region, one of Baja's oldest viticultural areas.
The missions profoundly shaped the region's trajectory: settlement patterns coalesced around mission sites, Indigenous communities were displaced and restructured, ranching economies took root, and the earliest grapevines were planted — a thread that leads directly to Valle de Guadalupe and Ensenada's modern wine identity.
The Rancho Era
1805 A land concession is granted to Jose Manuel Ruiz Carrillo, establishing Rancho Ensenada de Todos Santos. This marks a foundational step toward town formation — a named, bounded land grant tied to the bay — but it is distinct from the official founding of the city in 1882.
1821 Mexican Independence transforms Baja California. The new government secularizes the missions, redistributing mission lands (often to politically connected rancheros rather than to Indigenous communities). The rancho economy — cattle, hides, and tallow — becomes the dominant way of life in the region, establishing the pastoral landscape that would persist until the mining boom of the 1870s.
The Whaling Era
1870–1872 Industrial shore-whaling operations are established at Punta Banda and in Todos Santos Bay, part of the broader Pacific shore-whaling networks that stretched from Alaska to Baja California. Whale oil and baleen were valuable commodities, and the bay's sheltered waters made it a natural base for processing.
The contrast with today is striking. The same waters where gray whales were once hunted commercially now support a thriving whale-watching tourism industry. Each winter, migrating gray whales pass through Todos Santos Bay on their journey to breeding lagoons further south — a "then vs. now" conservation narrative that reflects a fundamental shift in how Ensenada relates to its marine environment.