CREATE TABLE table_201_43 (id NUMBER, "name" CLOB, "canton" CLOB, "district" CLOB, "area\ ( km2 ) " NUMBER, "population\ ( as of 2005 ) " NUMBER, "date of law" CLOB)

which canton falls under the date of law of 24 february 1843 and has a population of 3,966 ?
SELECT "canton" FROM table_201_43 WHERE "date of law" = '24 february 1843' AND "population\n(as of 2005)" = '3966'
SELECT "canton" FROM "table_201_43" WHERE "date of law" = '24 february 1843' AND "population\n(as of 2005)" = '3966'