0 the day on which an important event happened in a previous year: --
Tomorrow is the 30th anniversary of the revolution.
We always celebrate our wedding anniversary with dinner in an expensive restaurant.
1 a day when we remember or celebrate something important that happened on that day in a previous year: --
Observance of the anniversary continued for several decades further.
That is, was the 1558 "anniversary" date - at 140 rather than 400 days after the 1557 anniversary-used as the base for future anniversaries?
In addition, ad hoc benefit increases are sometimes given without calculating costs, as happened in 1999 during the 50th anniversary of the nation.
It went co-educational just before its fiftieth anniversary; women now amount only to 40 per cent of its students.
There is precise information about the celebration of the anniversaries of founders and benefactors throughout the year, with appropriate pittances and almsgiving.
If this is so, then the anniversary date of 1568 is likely to have been computed, and the error would not have resulted from copying.
Accordingly, it is worth reevaluating this classic on the fortieth anniversary of its first publication.
Perhaps the passage of the golden anniversary of this operation should stimulate a degree of reflection among surgeons and cardiologists.
