CREATE TABLE table_1275 ("Con- gress" CLOB, "District" CLOB, "Vacator" CLOB, "Election date" CLOB, "Successor" CLOB, "Took seat" CLOB)

Name the number of districts for december 1799
SELECT COUNT("District") FROM table_1275 WHERE "Election date" = 'December 1799'
SELECT COUNT("District") FROM "table_1275" WHERE "Election date" = 'December 1799'