The Lighthouse of Alexandria By CHICKENISGOOD 332 BCE In 332 BC Alexander the Great founded the city of Alexandria 323 BCE Alexander the Great died in June 323 BC. 305 BCE Ptolemy I Soter announced himself king in 305 BC. 290 BCE The Lighthouse of Alexandria first started being constructed in 290 BC. 283 BCE Ptolemy I died in 283 BC. 268 BCE The Lighthouse was finished being constructed/opened in 268 BC. 1480 The absolute destruction of the Lighthouse was caused by a series of earthquakes but the main date of destruction was 1480. 1968 In 1968 the lighthouse was rediscovered.