The very large stone blocks of the lower courses are Herodian, the courses of medium-sized stones above them were added during the Umayyad period, while the small stones of the uppermost courses are of more recent date, especially from the Ottoman period. The term Western Wall and its variations are mostly used in a narrow sense for the section traditionally used by Jews for prayer; it has also been called the "Wailing Wall", referring to the practice of Jews weeping at the site over the destruction of the Temples. During the period of Christian Roman rule over Jerusalem (ca. 324–638), Jews were completely barred from Jerusalem except to attend Tisha B'Av, the day of national mourning for the Temples, and on this day the Jews would weep at their holy places. The term "Wailing Wall" was thus almost exclusively used by Christians, and was revived in the period of non-Jewish control between the establishment of British Rule in 1920 and the Six-Day War in 1967. The term "Wailing Wall" is not used by religious Jews, and increasingly not by many others who consider it derogatory. In a broader sense, "Western Wall" can refer to the entire retaining wall on the western side of the Temple Mount. The classic portion now faces a large plaza in the Jewish Quarter, near the southwestern corner of the Temple Mount, while the rest of the wall is concealed behind structures in the Muslim Quarter, with the small exception of a section, the so-called Little Western Wall. The segment of the western retaining wall traditionally used for Jewish liturgy, known as the "Western Wall" or "Wailing Wall", derives its particular importance to it having never been fully obscured by medieval buildings, and displaying much more of the original Herodian stonework than the "Little Western Wall". In religious terms, the "Little Western Wall" is presumed to be even closer to the Holy of Holies and thus to the "presence of God" (Shechina), and the underground Warren's Gate, which has been out of reach for Jews from the 12th century till its partial excavation in the 20th century, even more so. Whilst the wall was considered Muslim property as an integral part of the Haram esh-Sharif and waqf property of the Moroccan Quarter, a right of Jewish prayer and pilgrimage existed as part of the Status Quo. This position was confirmed in a 1930 international commission during the British Mandate period. The earliest source mentioning this specific site as a place of Jewish worship is from the 17th century.