Our first lighthouses were actually given to us by Nature. Sailors sometimes used landmarks such as glowing volcanoes to guide them. In the Ancient World, trading ships were eventually built enabling navigators to sail long distances to buy and sell goods. In the days of wooden ships with sails, the wind and waves could easily push them against the rocks and wreck them. And so, the need for lighthouses as warning signals arose.
One of the Seven Wonders of the Ancient World was a lighthouse—the famous Pharos of Alexandria, Egypt. It is the first one that is recorded in history and was built about 280 BC.