11. One scholar thought they were related to Chinese, the only other pictographic language then known. 12. It is a difficult task to even attempt to make pictographic symbols universal in their meaning. 13. Other pictographic systems have been less successful, as described here : List of writing systems. 14. During the 1960s, Obreg�n used a pictographic system of his own invention, with formal and chromatic symbols. 15. The "'Codex Bodley "'is an important pictographic manuscript and example of Mixtec historiography. 16. During her early work, H�nerfauth made objective drawings and pictographic watercolors in the style of the academic tradition. 17. Unlike SignWriting, which was developed later, it is not pictographic , but drew heavily on the Latin alphabet. 18. His historical pictographic portraiture of Tecumseh is on display at the Museums at Prophetstown State Park in Lafayette, Indiana. 19. The Aztec oral and pictographic tradition also described the history of the Toltec empire giving lists of rulers and their exploits. 20. A pictographic crest or symbol represents each Kryptonian family, or House; the head of the house usually wears it.