Many people are wondering what it is about Friends that has made its 20th anniversary such an event this past week.
On the 10th anniversary of the U.S. invasion, see how the war played out on newsstands.
Thursday is the 50th anniversary of the Great Society and the civil rights push.
It is no small irony that the 50th anniversary of Catch-22 should coincide so closely with the 10th anniversary of 9/11.
On the eve of the 13th anniversary of the 9/11 attacks, President Obama was to address the nation about his plans to take on ISIS.
Old First Night is the anniversary of the very first meeting, I suppose.
The 25th was the first anniversary of the day she had quitted the shores of England.
Great preparations are making for the celebration of the Fourth of July, which is the anniversary of the national independence.
I cannot forget that this is the anniversary of the interment of my dear father.
On such an anniversary he was obviously bound, no matter at what personal inconvenience, to show a like public spirit.
early 13c., originally especially of the day of a person's death, from Medieval Latin anniversarium, from Latin anniversarius (adj.) "returning annually," from annus (genitive anni) "year" (see annual (adj.)) + versus, past participle of vertere "to turn" (see versus). The adjective came to be used as a noun in Church Latin as anniversaria (dies) in reference to saints' days. An Old English word for "anniversary" (n.) was mynddæg, literally "mind-day."