The Erechtheion is an ancient Greek temple on the north side of the Acropolis of Athens which was dedicated to both Athena and Poseidon.
The temple as seen today was built between 421 and 406 BCE. It may have been built in honor of the legendary king Erechtheus, who is said to have been buried nearby. Erechtheus was mentioned in Homer's Iliad as a great king and ruler of Athens during the Archaic Period, and Erechtheus and the hero Erichthonius were often syncretized. It is believed to have been a replacement for the Peisistratid temple of Athena Polias destroyed by the Persians in 480 BC.
The Erechtheion underwent extensive repairs and reformation for the first time during the 1st century B.C., after its catastrophic burning by the Roman general Sulla. The intact Erechtheum was extensively described by the Roman geographer Pausanias, writing a century after it had been restored in the 1st century AD. The building was altered decisively during the early Byzantine period, when it was transformed into a church dedicated to the Theometor. With this alteration many architectural features of the ancient construction were lost, so that our knowledge of the interior arrangement of the building is limited. It became a palace under Frankish rule and the residence of the Turkish commander's harem in the Ottoman period.
In 1800 one of the caryatids and the north column of the east porch together with the overlying section of the entablature were removed by Lord Elgin in order to decorate his Scottish mansion, and were later sold to the British Museum (along with the pedimental and frieze sculpture taken from the Parthenon). During the Greek War of Independence the building was bombarded by the Ottomans and severely damaged, the ceiling of the north porch was blown up and a large section of the lateral walls of the cella was dismantled. The Erechtheum went through a period of restoration from 1977 to 1988.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.