The Hotel Harrington, “Washington’s Tourist Hotel” located in downtown D.C., turns 100 this month.

D.C. Del. Eleanor Holmes Norton will speak about the hotel at 5 p.m. today and cut a celebratory cake.

“In a town that reveres its iconic history, it is an honor to cut the cake for the historic hotel, which kicked off one hundred years ago and has thrived throughout D.C.’s continually changing history,” Norton said in a statement. “Hotel Harrington reminds us that a historic city is never a city of official movements alone. What makes a city a real city are its people and its commerce. Businesses and hotels have come and gone, but the Harrington built a reputation that ensured the hotel would endure. Hotel Harrington is a prideful example of our hospitality sector, D.C.’s primary private sector industry and a major economic driver of this tourist town.”

Opened in March 1914 by Harrington Mills and Charles McCutcheon, the Harrington is D.C.’s longest operating hotel. The hotel was the first in D.C. to have air conditioning (installed in 1938), and was home to the city’s first TV station (WTTG) and a cafeteria-style restaurant called the Kitcheteria.

Here are two ads for the hotel from 1914, both of which tout the Harrington as “fireproof.”