urate calculus uric acid calculus. urethral calculus a urinary calculus in the urethra; symptoms vary according to the patient's sex and the site of lodgment. uric acid calculus a hard, yellow or reddish-yellow urinary calculus formed from uric acid.
In some traditions, the first day of Christmas begins on the evening of December 25th with the following day considered the First Day of Christmas (December 26th). In these traditions, the twelve days begin December 26 and include Epiphany on January 6. The origin and counting of the Twelve Days is complicated, and is related to differences in calendars, church traditions, and ways to observe this holy day in various cultures (see Christmas).
In 1907, Oklahoma became the last US state to declare Christmas a legal holiday. Year by year, countries all over the world started to recognize Christmas as the day for celebrating the birth of Jesus. Have a merry Christmas. Today, many of the pagan uses are reflected in Christmas. Jesus was born in March, yet his birth is celebrated on December 25, the time of solstice. The Christmas celebrations end the 12th day of Christmas (January 6), the same amount of days that the return of the sun was celebrated by ancient and Roman pagans.