So shocking were the anti-Christian purges that they demanded a new legal vocabulary. Some months afterward, Polish Jewish lawyer Raphael Lemkin used the cases of the Assyrians, and the Christian Armenians before them, to argue for a new legal category to be called crimes of barbarity, primarily “acts of extermination directed against the ethnic, religious or social collectivities whatever the motive (political, religious, etc.).” Lemkin developed this theme over the following years, and in 1943 he coined a new word for this atrocious behavior—namely, genocide.