500th

My 500th was the Tri for Fun Triathlon in Pleasanton, in August.

SFGate: Top News Stories Sam Whiting 2010

Next week is the 500th anniversary of the birth of Francis Borgia (1510 – 72), the Jesuit priest, Valencian aristocrat, Catholic saint and last great member of the House of Borgia.

Blurring Traditional Boundaries J. S. Marcus 2010

When Mickey Mantle hit his 500th homer in 1967, as he crossed home plate, they superimposed "Mickey Mantle" on the screen.

Len Berman: Top 5 Sports Stories Len Berman 2011

When Mickey Mantle hit his 500th homer in 1967, as he crossed home plate, they superimposed "Mickey Mantle" on the screen.

Len Berman: Top 5 Sports Stories Len Berman 2011

When Mickey Mantle hit his 500th homer in 1967, as he crossed home plate, they superimposed "Mickey Mantle" on the screen.

Len Berman: Top 5 Sports Stories Len Berman 2011

After Columbus: Four-hundred Years of Native American Portraiture offers a survey of the Library's collection of Native American portraiture, which was the subject of an NYPL exhibition commemorating the 500th anniversary of Columbus's discovery of the Americas.

The New York Public Library: The Letter That Announced a New World: Revisiting the Roots of Columbus Day The New York Public Library 2010

Publishing | An article marking the 500th issue of MAD Magazine notes the milestone brings with it dwindling circulation and a shift to a quarterly schedule.

Comics A.M. | The comics Internet in two minutes | Robot 6 @ Comic Book Resources – Covering Comic Book News and Entertainment 2009

He got a seat on the panel but did not spend so much time wielding its power that he neglected to do the things a freshman member of Congress is supposed to do, such as co-sponsoring feel-good resolutions popular with constituents -- in Emanuel's case, congratulating the Cubs 'Sammy Sosa for hitting his 500th home run and applauding the 11th anniversary of the return of pianist Ignacy Jan Paderewski's remains to Poland.

Chicago, get ready for Rahm Emanuel's charm offensive Neil Steinberg 2010

* Speaking of big milestones, Evan Dorkin says the 500th issue of Mad Magazine is out on newsstands now, which is kind of amazing -- to me at any rate.

Thin wallets, fat bookshelves: A publishing news round-up | Robot 6 @ Comic Book Resources – Covering Comic Book News and Entertainment 2009

The site, which houses over 15,000 photos, is reaching its 500th block, so we've compiled a few of the best shots from the last two years.

New York Block-By-Block: The Best Of NYC Grid (PHOTOS) The Huffington Post News Team 2010