Awon oniruuru eri naa, pelu awon eri jiometiri ati awon eri algebra, ti wa fun egbeegberun odun.Itokasi.. 
Awon iri ri nipa ogun abele Naz Naz ninu World War II Yuroopu se ayipada re si ẹlẹmi soro soro fun awon egbe re Jews.. 