Whose rule began in 1906 BC?
CREATE TABLE "list_of_state_leaders_in_the_20th_centur" (
  "type" text,
  "name" text,
  "title" text,
  "royal_house" text,
  "from" text
);
SELECT "name" FROM "list_of_state_leaders_in_the_20th_centur" WHERE "from"='1906 bc';