French book from 2022 documents the climate history humanity lived through over the last 2000 years - the Roman Climatic Optimum, the Medieval Warm Period and the Little Ice Age - all global, obviously. https://archives.lesobservateurs.ch/2022/12/19/climat-on-a-ceuilli-des-fraises-mures-a-noel-a-liege-au-moyen-age-en-1116/