Between 1855 and 1866 at least 500,000 Muslims, and possibly up to 900,000, left the Russian Empire and emigrated to the Ottoman Empire.
Antara tahun 1855 hingga 1866, sekitar 500.000 Muslim (atau mungkin bisa mencapai 900.000) meninggalkan Kekaisaran Rusia dan pindah ke Kesultanan Utsmaniyah.