After the fall of Attila, the Eastern Empire enjoyed a period of peace, while the Western Empire continued to deteriorate due to the expanding migration and invasions of the barbarians, most prominently the Germanic nations. The West's end is usually dated 476 when the East Germanic Roman foederati general Odoacer deposed the Western Emperor Romulus Augustulus, a year after the latter usurped the position from Julius Nepos.
The Warring States period was an era in ancient Chinese history characterized by warfare, as well as bureaucratic and military reforms and consolidation. It followed the Spring and Autumn period and concluded with the Qin wars of conquest that saw the annexation of all other contender states, which ultimately led to the Qin state's victory in 221 BC as the first unified Chinese empire, known as the Qin dynasty.