January 19 - the Unix epoch completes itself as the number of seconds since January 1, 1970 overflows the maximal value that can be stored in 32 bits as a signed integer. Unless reprogrammed, 32 bit computers will malfunction and many Java and JavaScript programs will stop working.
April 25 - Easter occurs on its latest possible date. The previous time this occurred was in 1943
... with 28.2% under the age of 18, 7.5% from 18 to 24, 33.5% from 25 to 44, 23.9% from 45 to 64, and 6.9% who are 65 years of age or older. The median age is 34 years. For ...