By Mary Farrow Denver, Colo., Feb 18, 2023 / 07:00 am Sunday, Feb. 5, was Septuagesima Sunday, followed by Sexagesima on Sunday, Feb. 12, and Quinquagesima Sunday on Feb. 19, which is the last Sunday before Shrovetide, which culminates in Shrove Tuesday — more popularly known as Mardi Gras. If all …