CREATE TABLE table_49129 ("Team" TEXT, "City" TEXT, "State/Province" TEXT, "League" TEXT, "Est." TEXT)

In what year was the cfl team in edmonton, alberta established?
SELECT "Est." FROM table_49129 WHERE "State/Province" = 'alberta' AND "League" = 'cfl' AND "City" = 'edmonton'
SELECT "Est." FROM "table_49129" WHERE "City" = 'edmonton' AND "League" = 'cfl' AND "State/Province" = 'alberta'