referring to the period in human history characterized by the use of copper tools alongside stone tools.

ताम्रपाषाण काल

English Usage: Archaeologists discovered various artifacts from the Chalcolithic level of the site.

Hindi Usage: पुरातत्वविज्ञानी ने स्थल के ताम्रपाषाण स्तर से विभिन्न कलात्मक वस्तुएं खोजीं।