Complex sentence: Lazarus Geiger (1829--1870) was a German Jewish philosopher and philologist who first developed a sequence in the acquisition of basic colour terms which he developed through his readings of the colour terminologies of ancient texts.
Split into simpler sentences: Lazarus Geiger (1829--1870) was a German Jewish philosopher and philologist who took a historical-comparative approach to questions around colour perception and colour terminology. He was the first to develop a sequence in the acquisition of basic colour terms which he arrived at through analyses of the colour terminologies of ancient texts.