How To Use 400th In A Sentence

VATICAN CITY, 7 OCT 2009 (VIS) - During his general audience, held this morning in St. Peter's Square, Benedict XVI focused his catechesis on St. John Leonardi, patron of pharmacists, the 400th anniversary of whose death falls on 9 October. Insight Scoop | The Ignatius Press Blog
One of these is writer Miguel de Cervantes whose immortal work Don Quixote recently celebrated its 400th anniversary.
On Saturday, May 9, 2009 (raindate: Sunday, May 10), Earth Celebrations, in partnership with Manhattan Youth Downtown Community Center, launches its new Hudson River Pageant: to restore the Hudson River and address climate change in New York City. 2009, is also the 400th Anniversary of Henry Hudson's and Samuel de Champlain's, exploratory voyage in 1609, which will be featured as part of the pageant's celebration of the Hudson River's history. NYC.com's Exclusive New York City Event Calendar : Art
It promises to be among the grislier events planned to celebrate the 400th anniversary of his death next year. Times, Sunday Times
Post-polymer counterfeiting is only a 400th of what it was. Times, Sunday Times

An impassioned speech to a massive crowd can be heard clearly in the 400th row without any means of amplification.
Google unveiled this logo to celebrate the 400th anniversary since Galileo Galilei, the Italian astronomer, showed Venetian merchants his new creation, a telescope.
The Moral Maze, which is produced by BBC Religion and Ethics, recently broadcast its 400th edition and is always live.
The finished design marks the 400th anniversary of the 1605 gunpowder plot, led by infamous York son Guy Fawkes.
A release date is pencilled in for the autumn to coincide with the 400th anniversary of Rembrandt's birth this year.