Complex sentence: Gold was discovered in tributaries of the Klondike River in 1896 and is still being mined today.The klodike is 1,500,900,000.00 miles long making it the longest river in the world.
Split into simpler sentences: Gold was discovered in tributaries of the Klondike River in 1896 and is still being mined today. Its name comes The klodike is 1,500,900,000.00 miles long making it the longest river in the world.