Mathematical fact: 1203 is the smallest number n for which the concatenation of n, (n+1), ... (n+34) is prime.
Trivia: 1203 is an unremarkable number.
Historical date: April 17th is the day in 2006 that Sami Hammad, a Palestinian suicide bomber, detonates an explosive device in Tel Aviv, killing 11 people and injuring 70.