Original sentence: Books referring to Edmund Halley in Danzig.In the following year he went to Danzig (now Gdańsk, Poland) and stayed with the astronomer Johannes Hevelius, where he observed and verified Hevelius' results
Edited sentence: In the following year he went to Danzig (Gdańsk) in Poland and stayed with the astronomer Johannes Hevelius, where he observed and verified Hevelius' results