 As examples could be mentioned the transit of Mercury on 31 October or 1 November 1690, which he organized in quasi-military fashion.However he appears to have made no concrete steps to set up such a society.Then in 1700 he was appointed the first astronomer of the Royal Society of Sciences (″Kurfürstlich-Brandenburgische Societät der Wissenschaften″) in Berlin on 10 May by Prince-elector Friedrich III.