A proposed 2014-15 school calendar that would shorten Thanksgiving break to three days and extend the school year past Memorial Day ran into doubts Thursday night at the Bulloch County Board of Education. The calendar had been introduced in December, but rather than taking an expected vote Thursday, the board tabled it after a lengthy discussion. In the current school year, students and teachers had a full week off for Thanksgiving, and the last day of school is May 23.