Timeline
Eight eras that made Pasadena
From Tongva village sites to Mars rovers — the turning points, in order.
Before 1770
Hahamog'na land at the mouth of the Arroyo
Long before there was a Pasadena, the land between the Arroyo Seco and the San Gabriel foothills was home to the Hahamog'na, a band of the Tongva (Gabrielino) people. They lived along the year-round water of the arroyo and the canyons that drain the mountains — the same water that would later decide where every road, orchard and reservoir in the city went. The name survives today in Hahamongna Watershed Park, just below Devil's Gate Dam.
- The Arroyo Seco — "dry stream" in Spanish — is still the city's defining natural feature
- Tongva place names and trail routes shaped the earliest wagon roads into the valley
1771–1873
Mission lands, then Rancho San Pascual
After the founding of Mission San Gabriel in 1771, the area became mission grazing land. Following Mexican independence and the secularization of the missions, the land passed into private hands as Rancho San Pascual — roughly 14,000 acres covering what is now Pasadena, South Pasadena and Altadena. A string of owners ran cattle and sheep here through droughts that eventually broke the ranching economy and put the land on the market in pieces.
- Rancho San Pascual covered today's Pasadena, Altadena and South Pasadena
- Devastating 1860s droughts collapsed Southern California ranching and freed the land for subdivision
1874–1885
The Indiana Colony plants a town
In 1873 a group of Indianapolis families — chasing a warmer climate and a healthier one — sent Daniel M. Berry west to find land. He found the west end of Rancho San Pascual. The buyers organized as the San Gabriel Orange Grove Association, and settlers arrived in 1874 to what everyone simply called the Indiana Colony. Two years later they wanted a real name and landed on Pasadena, taken from an Ojibwe phrase understood locally as "crown of the valley." Citrus went in the ground, irrigation ditches followed, and a farming village took shape around what is now Orange Grove Boulevard.
- Settlers arrived in 1874; the name Pasadena was adopted the following year
- "Crown of the Valley" is still the city's nickname and the reason locals say "Crown City"
- Orange Grove Boulevard was lined with so many mansions it earned the name Millionaires' Row
1886–1899
Railroads, resort hotels and the first Rose Parade
The Santa Fe reached Pasadena in the mid-1880s and set off one of the wildest land booms in American history. Pasadena incorporated as a city on June 19, 1886. Wealthy Easterners came for the winter and needed somewhere to stay, so the town built palace hotels: the Raymond on its own hill, the Hotel Green downtown, the Hotel Maryland with its famous vine-covered pergola. To show off the weather to people shoveling snow back home, the Valley Hunt Club staged a flower-covered carriage parade on January 1, 1890 — the first Tournament of Roses.
- Pasadena incorporated June 19, 1886
- First Rose Parade: January 1, 1890, organized by the Valley Hunt Club
- Thaddeus Lowe's Mount Lowe Railway opened in 1893, carrying tourists to a mountaintop resort
1900–1929
Craftsman houses, a stadium, and a new kind of college
The boom turned into real civic wealth. Charles and Henry Greene built the redwood-and-shingle houses that made the American Craftsman bungalow famous, with the 1908 Gamble House as its masterpiece. The Colorado Street Bridge arched across the Arroyo Seco in 1913. Football moved out of Tournament Park into a horseshoe stadium in the arroyo — the Rose Bowl — which opened in 1922. Throop Polytechnic Institute, founded in 1891, was rebuilt under George Ellery Hale, Robert Millikan and Arthur Noyes into the California Institute of Technology in 1920. City Hall's great dome and the Central Library both opened in 1927.
- Gamble House (1908) is a National Historic Landmark and the definitive Craftsman house
- Colorado Street Bridge completed 1913; Rose Bowl stadium opened 1922
- Throop became Caltech in 1920; Mount Wilson Observatory above the city opened in 1904
- Pasadena City Hall (1927) was designed by Bakewell & Brown, architects of San Francisco's city hall
1930–1959
Depression, rocket engineers, and the first freeway
The Depression closed hotels and emptied estates, but it also brought federal money and a strange new industry. Caltech students testing rocket motors in the arroyo grew into the Jet Propulsion Laboratory. The Arroyo Seco Parkway opened in 1940 as the first freeway in the American West, tying Pasadena directly to downtown Los Angeles and turning a resort town into a commuter city. The Pacific Electric red cars that had knit the region together ran their last Pasadena service in the early 1950s.
- JPL grew out of 1930s rocket experiments in the Arroyo Seco
- Arroyo Seco Parkway (1940) was the West's first freeway
- Jackie Robinson and his brother, 1936 Olympic silver medalist Mack Robinson, grew up on Pepper Street
1960–1989
Freeways, urban renewal — and a preservation revolt
Post-war planning hit Pasadena hard. The 210 Freeway and the never-finished 710 extension cut through established neighborhoods and displaced hundreds of families, many of them Black and Latino households in Northwest Pasadena. Downtown's Victorian and brick commercial blocks were slated for demolition. What saved them was an unusually stubborn preservation movement: instead of clearing Old Pasadena, the city restored it, and the district's brick alleys became a national model for downtown revival. Meanwhile the Pasadena Art Museum's radical exhibitions — including Marcel Duchamp's first retrospective and an early Andy Warhol show — put the city on the contemporary art map before its collection passed to Norton Simon in the 1970s.
- Freeway construction displaced whole blocks of Northwest Pasadena; the 710 tunnel project was finally killed in 2018
- Old Pasadena was restored rather than demolished — the reason the brick storefronts survive
- The Pasadena Art Museum became the Norton Simon Museum in the 1970s
- Science-fiction author Octavia E. Butler was born in Pasadena in 1947 and wrote her early work here
1990–Today
Gold Line trains, world finals, and a city that keeps rebuilding
The Rose Bowl became a global stage: the 1994 men's World Cup final, the 1999 Women's World Cup final decided on penalties, five Super Bowls, and Olympic soccer in 1984. Light rail returned in 2003 when the Gold Line — now the A Line — reopened the old railroad alignment to Los Angeles. Caltech and JPL kept Pasadena in the middle of American science, from Mars rovers to gravitational-wave detection. In January 2025 the Eaton Fire tore through neighboring Altadena and Pasadena's eastern edge, the most destructive event in the area's modern history, and rebuilding is still underway.
- Rose Bowl hosted the 1994 World Cup final and the 1999 Women's World Cup final
- The Gold Line (now A Line) reopened rail service to Los Angeles in 2003
- JPL manages NASA's Mars rovers from Pasadena's northern edge
- The January 2025 Eaton Fire reshaped Altadena and eastern Pasadena; recovery continues
