Such mythological motifs are variously seen as late survivals from a period when Yahweh held a place in theology comparable to that of Hadad at Ugarit; or as late henotheistic/monotheistic applications to Yahweh of deeds more commonly attributed to Hadad; or simply as examples of eclectic application of the same motifs and imagery to various different gods. Similarly, it is argued inconclusively whether Ēl Shaddāi, Ēl ‘Ôlām, Ēl ‘Elyôn, and so forth, were originally understood as separate divinities. Albrecht Alt presented his theories on the original differences of such gods in "Der Gott der Väter" in 1929. But others have argued that from patriarchal times, these different names were in fact generally understood to refer to the same single great god, Ēl. This is the position of Frank Moore Cross (1973). What is certain is that the form ’El does appear in Israelite names from every period including the name "Yiśrā’ēl" ("Israel"), meaning "El strives".