Mathematical fact: 2253 is the number of monic polynomials of degree 11 with integer coefficients whose complex roots are all in the unit disk.
Trivia: 2253 is a boring number.
Historical date: March 2nd is the day in 1992 that Armenia, Azerbaijan, Kazakhstan, Kyrgyzstan, Moldova, San Marino, Tajikistan, Turkmenistan and Uzbekistan join the United Nations.