Red Square was then the foremost landing stage and trading center for Moscow. Even though Ivan the Great decreed that trade should only be conducted from person to person, in time, these rules were relaxed, and permanent market buildings began appearing on the square. After a fire in 1547, Ivan the Terrible reorganized the wooden shops that lined its eastern side into market lines. The streets Ilyinka and Varvarka were divided into the Upper lines (now GUM department store), Middle lines and Bottom lines, although Bottom Lines were already in Zaryadye).