Meaning of annus mirabilis*

an•nus mi•ra•bi•lis

Pronunciation: (än'noos mi-rä'bi-lis Eng. an'&schwas-m&schwa-rab'&schwa-lis), [key]
— pl. an•ni mi•ra•bi•les
  1. year of wonders; wonderful year.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.