Sotheby’s London is gearing up to mark Queen Elizabeth II’s platinum jubilee this June, honoring her 70 years on the throne with a month-long program of exhibitions and events celebrating British art, design, literature, and other artistic output, all leading up to its marquee summer auctions.

Queen Elizabeth, who will turn 96 on April 21, is the first British ruler to reach the platinum jubilee milestone, having ascended to the throne on June 2, 1953. She became the nation’s longest-reigning monarch on September 9, 2015, surpassing her great-great-grandmother, Queen Victoria.