Pánfilo de Narváez lands near what is now Jungle Prada in St. Petersburg.
Odet Philippe stakes a claim in what is now Safety Harbor.
Unnamed hurricane hits Pinellas peninsula.
Clearwater gets the peninsula's first post office.
First publication, in Dunedin, of paper that will become the Tampa Bay Times.
Tarpon Springs incorporates as first city on peninsula.
Peter Demens' Orange Belt Railroad extends to newly named St. Petersburg.
Feb. 23, 1907
Editor W.L. Straub writes "Pinellas Declaration of Independence" in St. Petersburg Times editorial.
May 23, 1911
Gov. Albert Gilchrist signs bill allowing creation of new county.
Nov. 14, 1911
Voters ratify act creating Pinellas County. Tally is 1,379 to 505.
Jan. 1, 1912
Pinellas County is officially born.
Jan. 1, 1914
Tony Jannus flies from St. Petersburg to Tampa in 23 minutes for the first scheduled commercial flight in U.S. history.
Oct. 25, 1921
Hurricane hits Pinellas, killing six. It's the only direct hit of the 20th century.
Gandy Bridge opens.
Don CeSar Hotel opens.
The Ben T. Davis Causeway, later renamed Courtney Campbell, opens.
Blacks first allowed to vote in a Pinellas primary.
Red Tide virtually destroys Tarpon Springs' sponge industry.
Original Sunshine Skyway bridge span opens.
Gulf Coast Highway, a.k.a. U.S. 19, connects Pinellas with Tallahassee.
Howard Frankland Bridge opens.
James Sanderlin sues school system over facilities for black students. Case ends in 1971 with the state's first voluntary, all-inclusive desegregation plan.
U.S. Army Corps of Engineers rejects dredge-and-fill permit on Boca Ciega Bay because of environmental impact — first time in the nation.
Black sanitation workers in St. Petersburg strike, leading to four nights of riots.
Greek tanker runs aground, spills oil that washes up on Pinellas beaches.
Church of Scientology begins surreptitiously buying property in Clearwater.
Summit Venture hits Sunshine Skyway. One span collapses, killing 10.
African-American neighborhoods in St. Petersburg are demolished to make room for baseball stadium.
New Sunshine Skyway opens.
Two barges and a tanker collide, spilling 300,000 gallons of oil and 33,000 gallons of jet fuel that foul 13 miles of beaches.
Tampa Bay's new baseball team, then named the Devil Rays, plays first game in Tropicana Field.