The DFG project Corpus Avesticum Berolinese (CAB) began its work six years ago and will, we hope, reach its half-time this summer. We have therefore prepared a small celebration for Monday 27 May. The centrepiece will be a guest lecture by Prof. Almut Hintze. Mrs Hintze will present some of the results of the "Multimedia Yasna" project (ERC, 2018-2023) she is leading, which complements the goals and methods set in CAB. Afterwards we invite you to a small drink.