There were a few stone seats for officials, and wooden benches may have been added when the stadium was restored in Roman times (Stadium IV-V). A stone drain that ran around the track opened at regular intervals into little basins where rain water gathered. The ground was hard packed sand. The stadium was built about 582 B.C. by Miltiades, one of the legendary founders of cities in Greece. It was used for athletic competitions and military drills. In 490 B.C., the Olympic Games were first held on the grounds of the newly built stadium. Until then, athletes had competed in festivals held at various locations across Greece. By establishing these annual events, Miltiades hoped to encourage competition between athletes from different towns. He also may have wanted to promote peace among Greeks after many years of civil wars. Until the construction of the Parthenon in 438 B.C., this was the most important temple in Athens. It was dedicated to the goddess Athena, the protector of Athens. The original structure was burned down in the fifth century B.C. but it was rebuilt over the next few decades by architects from all over Greece. The final version was done in 322 B.C. by Pheidias, one of the leading artists of his time. The statue he made of Athena is one of the greatest works of art ever created.