Military: War
Emperor Lucius invades Mahadia in the hopes of conquering it.
Emperor Lucius is blind-sided by the vastness of Mahadia and realizes during his reign that he will not be able to conquer all of the Kingdom in his lifetime. By the end of his reign in 1936 AD most of the western half of Mahadia is under Praethian rule. It takes another 330 years and the rule of a dozen unnamed Emperor's for Mahadia to finally surrender and swear fealty to the Praethian's.