Our CAS-E Welcome Day is an opportunity to introduce our center, our program, the different teams, fellows, and associated researchers and to learn about their individual research projects (max. 5 min. each). The first and second part of the morning will consist of welcome and introductory remarks by our teams, permanent and visiting fellows, and associated researchers. The second part in the afternoon will consist of presentations and discussions on past, present and future research and contributions of CAS-E. The first lecture of our summer semester series (TBA) will take place from 18:15–19:45. It will be followed by a dinner at our center, which will provide further opportunities to socialize.