<prompt> International Day of Radiology is celebrated on6th November7th November8th November9th November  <response>: 8th November of each year is celebrated as International Day of RadiologyIDOR X Rays were discovered by W.C.Roentgen on 8th November 1895, so 8th November is celebrated as International Day of Radiology every year. Theme for IDOR 2019: spos imaging 