Flags of the Holy Roman Empire
In 1804, Napoleon Bonaparte declared the First French Empire. In response to this, Emperor Francis II of the Habsburg dynasty declared his personal domain to be the Austrian Empire and became Francis I of Austria. Taking the colours of the banner of the Holy Roman Emperor, the flag of the Austrian Empire was black and gold. Francis II was the last Holy Roman Emperor, with Napoleon forcing the empire's dissolution in 1806. After this point, these colours continued to be used as the flag of Austria until 1918.
Domus Aurea (Antioch)
Julian moved to Antioch in 362, soon after becoming the sole ruler of the eastern empire, following the death of Constantius II. He was the last non-Christian ruler of the Roman Empire, and chose Antioch as his headquarters, partly to lay plans for his proposed campaign against the Persians and partly to further his attempt to restore the eastern empire to Hellenism. He had the body of Saint Babylas removed from the martyrium near the temple of Apollo at Daphne, because he thought that it had silenced the oracle of Apollo. When the temple burned down, shortly thereafter, Julian was furious, suspecting the Christians and in response closed the Great Church, removing its liturgical vessels. This act effectively brought his attempts to restore Hellenism in Antioch to an end.