मानव जाति के शुरुआती विकास के प्रागैतिहासिक काल को आमतौर पर किस नाम से जाना जाता है?

In general Indian historical timeline contexts, the Neolithic Age is broadly estimated as:

Microliths (small stone tools) are a characteristic feature of which prehistoric age?

The Palaeolithic Period is also known as the ______.