Complex sentence: Outrigger canoes were originally developed by the Austronesian speaking peoples of the islands of Southeast Asia for sea travel, and were used to transport these peoples both eastward to Polynesia and New Zealand and westward across the Indian Ocean as far as Madagascar during the Austronesian migration period.
Split into simpler sentences: Outrigger canoes were originally developed by the Austronesian-speaking peoples of the islands of Southeast Asia for sea travel. They were used to transport these peoples both eastward to Polynesia and New Zealand and westward across the Indian Ocean as far as Madagascar during the Austronesian migration period.