On May 30, 1891, the then 10-year-old Queen Wilhelmina placed a memorial stone for the construction of the Wilhelminakade. By means of this laying of the stone, she gave her name to this new quay. The Wilhelminasteen was built into the quay wall, so that travelers from the ferry could see the stone well upon arrival. The ferry was discontinued a few years later, the jetty fell into disuse and the stone was forgotten. Until in 1976 the quay wall had to be moved about 50 meters due to the expansion of the Wilhelminakade, which meant that the Wilhelminasteen was noticed and lifted from her place. To everyone's surprise, a small time capsule was found in it, which ended up in the archives of Museum Rotterdam. The Wilhelminasteen was then placed in the departure hall of the Holland America Line, but was transported to the Gemeentewerf and stored during a renovation in 1997. In 2005 it was placed horizontally in the pavement at the Montevideo building next to Hotel New York. Due to the horizontal position, the stone is damaged and as the development of the Wilhelminapier progresses, project manager of the Kop van Zuid, Bram van Norden, decides that the Wilhelminasteen represents a historical value. BKOR is instructed to install the Wilhelminasteen a permanent place on the Wilhelminakade. Artist Arnoud Holleman is approached because he gives a different twist to art in public space with works that unite history and present and encourage reflection. He shows an exact replica of the Wilhelminsteen in which a time capsule is again placed. In the months leading up to the sealing of the time capsule, the website www.wilhelminasteen.nl collected a large number of questions for the future, which are placed in the capsule. On May 30, 2013, exactly 122 years later, the original Wilhelminasteen and re-bricked the exact replica in the quay. Inside the cast is the new time capsule In Memory Of Things To Come, which will open on May 30, 2135. On May 30, 2014, the first Wilhelminaday celebrated, because that day the time capsule was in the quay wall for exactly one year. Time capsules play a game with time, in which remembering and forgetting go hand in hand. Wilhelminaday is therefore the day to keep the memory of the time capsule alive. For more information go to www.wilhelminasteen.nl.