The anniversary has seldom passed without great fanfare.
But the one-year anniversary of the event, on March 3, will pass before testimony begins.
Many international and business travelers seemed to wait until the first anniversary of the attacks had passed to return to New York.
Elsewhere in China, security forces fanned out to ensure that the anniversary passed without notice.
And the one-year anniversary of the "surge" in Iraq passed with still no plan to bring home our troops.
An anniversary passed strangely and happily without notice this week: Six months ago, the president was impeached.
But the fund managers gradually began to regain their nerve after the first anniversary of the crash passed last October without a disaster.
Despite this, the anniversary passed without event.
The fourth anniversary of the fall of the Berlin wall passed without major observances today.
The anniversary passed without incident in the United States.