Yes it is on the twelth and children also might get a holiday for school
Yes
12 I'm an MD, my wife is a vet
No, veterinarians is a plural noun.
Yes, veterinarians can advertise their services.
October 12, 1945, was a Friday.
There are veterinarians in every country in the world.
12 October 1993 was a Tuesday.
October 12 1970 was on a Monday.
October 12, 1965, was on a Tuesday.
October 12, 2011 was on a Wednesday.
12 October 2010 is a Tuesday.
October 12 1984 was a Friday.