In observance of the anniversary of the granting of MIT’s charter on April 10, 1861, the Institute Archives and Special Collections has chosen to focus this month’s Object of the Month exhibit on MIT’s Centennial celebration. Some of the many letters and telegrams received by the Institute on the occasion of its 100th birthday are displayed on a poster opposite 14N-118 and on the Archives’ web site. The warmth and enthusiasm of the greetings celebrate the success of William Barton Rogers’s plan for a new kind of institution and illustrate MIT’s influence on the international scientific and educational communities.