 Doku CLIM is the first global multivariable collection of documentary climate records. It consists of 621 time series covering temperature, precipitation, and wind regimes. These records were evaluated using formulated proxy models to predict the observed values from climate fields. The results showed strong correlations between the proxy models and the actual observations, with correlation being slightly lower for precipitation-sensitive series. This suggests that documentary records can be useful in regions and seasons where early instrumental data and paleoclimat proxies are lacking. This article was authored by Angela Maria Bergdorf, Stefan Bronemann, George Adamson, and others.