Here are a few events marking this occasion:

• Today at Noon, there will be a champagne toast as San Francisco’s fireboat, Phoenix, joins with other area ships, including the amphibious WWII-era “ducks” of Bay Quackers in a “Parade of Ships” along the waterfront of San Francisco’s Fisherman’s Wharf. (sorry for the late notice -- SFist!)
• Until 5 p.m. today, onboard tours are free to the public, including the engine room -- the ship's unique reciprocating engines were featured in Titanic.
• On Saturday from 10 a.m. to 2 p.m. the ship will be taken for a cruise around the Bay, $100 per person.
• The Jeremiah O'Brien will be featured in an upcoming episode of the History Channel's new "Hero Ships" series, air dates to be determined.

Here more about the show after the jump!