May 19 has been recognized by the Greek parliament as the day of remembrance of the Pontian Greek Genocide by the Turks. There are various estimates of the toll. Records kept mainly by priests show a minimum 350,000 Pontian Greeks exterminated through systematic slaughter by Turkish troops and Kurdish para-militaries. Other estimates, including those of foreign missionaries, spoke of 500,000 deaths, most through deportation and forced marches into the Anatolian desert interior. Thriving Greek cities like Pafra, Samsous, Kerasous, and Trapezous, at the heart of Pontian Hellenism on the coast of the Black Sea, endured recurring massacres and deportations that eventually destroyed their Greek population.