Explanation: The following Greek and Latin sources inform us about the long distance cultural and commercial connections.

• The Periplus of Erythrean Sea, an ancient Greek text of the first century CE.
• Pliny the Elder’s Natural History, first century CE
• Ptolemy’s Geography, second century CE
• Vienna Papyrus G 40822, a Greek document datable to the second century CE.
• A Roman Map called Peutingerian Table

Source: Tamil Nadu NCERT