But how to celebrate this momentous (if, admittedly, annual) occasion?
Thursday's concert was the annual occasion to celebrate Philharmonic members who have reached milestones.
Thursday night was the annual occasion for plaques and speeches in honor of retiring orchestra players.
But it's on the personal level that many believe the coming summit, an annual occasion, will work best.
– The Oscar nominees luncheon is an annual occasion for surreal showbiz congratulations, and the far-reaching back-slapping doesn't stop there.
However, there is an alternative to this traditionally American annual occasion of queuing (people are even queuing online on the Currys website) or wrestling for brand new products.
Sessions appeared alongside Lewis at one such event, but Lewis says he is not prepared to invite Trump to the annual occasion.
This month's meeting in Paris marks the 21st annual occasion on which nations have met to try to deal with the climate problem.
The former president, Ali Akbar Hashemi Rafsanjani, has delivered the Friday Prayer sermon for almost 25 years on Quds Day, an annual occasion of Iranian solidarity with the Palestinian movement.
