On 24 April 1935, Bulgakov was among the invited guests who attended the Spring Festival at Spaso House, the residence of the U.S. Ambassador to the Soviet Union, hosted by Ambassador William Bullitt. Critics believe Bulgakov drew from this extravagant event for his novel. In the middle of the Great Depression and Stalinist repression, Bullitt had instructed his staff to create an event that would surpass every other Embassy party in Moscow's history. The decorations included a forest of ten young birch trees in the chandelier room; a dining room table covered with Finnish tulips; a lawn made of chicory grown on wet felt; a fishnet aviary filled with pheasants, parakeets, and one hundred zebra finches, on loan from the Moscow Zoo; and a menagerie including several mountain goats, a dozen white roosters, and a baby bear.[13]
Although Joseph Stalin didn't attend, the 400 elite guests at the festival included Foreign Minister Maxim Litvinov, Defense Minister Kliment Voroshilov, Communist Party heavyweights Nikolai Bukharin, Lazar Kaganovich, and Karl Radek, Soviet Marshals Aleksandr Yegorov, Mikhail Tukhachevsky, and Semyon Budyonny, and other high-ranking guests.
The festival lasted until the early hours of the morning. The bear became drunk on champagne given to him by Karl Radek. In the early morning hours, the zebra finches escaped from the aviary and perched below the ceilings around the house.
In his novel, Bulgakov featured the Spring Ball of the Full Moon, considered to be one of the most memorable episodes.[14] On 29 October 2010, seventy-five years after the original ball, John Beyrle, U.S. Ambassador to the Russian Federation, hosted an Enchanted Ball at Spaso House, recreating the spirit of the original ball as a tribute to Ambassador Bullitt and Bulgakov.[15]
