In fact there are certain opposing viwes as some scholars provide the primacy of the Nile River.Here ,hawever in 1960 which greatly shortened the river.Until recently the length of the amazon was calculated from one of its tributaries maranon and now it is calculated from the second influx-ucayli .thus it appears that the length of the amazon is 7000 kilometers while the nile measures only 6853km......Sper ca te-am ajutat