Complex sentence: In 1835, British India adopted a mono-metallic silver standard based on the rupee; this decision was influenced by a letter written by Lord Liverpool in 1805 extolling the virtues of mono-metallism.
Split into simpler sentences: In 1835, British India set itself firmly upon a mono-metallic silver standard based on the rupee. His decision was influenced by a letter, written in the year 1805, by Lord Liverpool that extolled the virtues of mono-metallism.