Complex sentence: Hongi Hika returned to the Bay of Islands in July 1821, after 457 days away, via Sydney Australia where he picked up an estimated 500 muskets that were waiting for him.
Split into simpler sentences: Hongi Hika returned to the Bay of Islands in July 1821, after 457 days away, via Sydney Australia. At Sydney Hongi Hika picked up an estimated 500 muskets that were waiting for him.