Complex sentence: In antiquity, Sri Lanka was known to travellers by a variety of names; in India as Lanka or Sinhala, ancient Greek geographers called it "Taprobane" and Arabs referred to it as "Serendib" (the origin of the word "serendipity").
Split into simpler sentences: In antiquity, Sri Lanka was known to travellers by a variety of names. Known in India as Lanka or Sinhala, ancient Greek geographers called it "Taprobane" and Arabs referred to it as "Serendib" (the origin of the word "serendipity").