How long has humanity been on Earth

Full Title: 
Τις η επί της γης ηλικία του γένους των ανθρώπων
Found in: 
Anemi Digital Library
Year: 
1890
Century: 
19th
Place of Publication: 
Summary - Description: 
This article describes some paleontological findings that help determine the period during which humanity appeared in Earth.
Type of Source: 
Bibliographical Sources: 

Προμηθεύς (Prometheus) 1890,  203-204, 210-211