4 Number of handwritten pages comprising the Constitution, signed by 55 delegates on Sept. 17, 1787. According to the law signed by President Bush last December, this Sept. 17 is the first official Constitution Day. He plans to celebrate by proposing a few changes that will finally make it juuuust right.

86 Number of eateries offering three courses for $30 as part of Center City Restaurant Week, Sept. 18-23. Consumption of three courses calls for a plan, so here's what you do: Wine and dine at any Old City establishment, walk it off in the direction of Third and South streets, and then polish off with the classic "Lorenzo's chaser slice." Although usually reserved for post-whiz-without withdrawal, this digestif is the perfect complement to a night of discounted gorgery.

100 Minimum number of service opportunities you'll have each month as a Greater Philadelphia Cares volunteer. Call 215-564-4544 to sign up for a "Voluntour" orientation session.

$100,000 Amount of money Ukrainian President Victor Yushchenko will receive for being awarded the Philadelphia Liberty Medal for his work to organize fair elections. The presentation will take place on Sept. 17 at the National Constitution Center.