Zurich, 20-24 June 2022. Solstice of Foundations 2022 was a summer school on quantum foundations hosted by ETH Zurich and Squid.  It provided a solid introduction to current approaches and problems within foundational research, and is tailored for junior researchers entering the field, like masters and PhD students, as well as postdocs.
The summer school Solstice of Foundations 2019 took place on June 17-21, 2019, in Zürich, Switzerland, and was followed by a workshop on the interface between mathematical physics and quantum information theory, hosted by SwissMap.
The first edition of Solstice of Foundations took place on June 18-23, 2017, in Zürich, Switzerland. It consisted of two events: the Quantum Foundations Summer School and a Contextuality workshop, dedicated to the 50th anniversary of the Kochen-Specker theorem.