Daɣ awatay wan 1731, Benjamin Franklin assiday Library Company tan Phildaelphia , ehan n alkittaban wa ezzaran tikrach taqqimt n addinat t anfaz -at daɣ armud sihen i ezaraj wan alkittaban tolas t aqqal ammas n amiyiz wan sicence tolas isukni tan n imiyizan win science