Megasthenes was a Greek historian and ambassador who wrote about various subjects in his works. The letter "G" in the table stands for Greek, referring to Megasthenes' nationality and the origin of his writings.

1. Who is Megasthenes?
Megasthenes was an ancient Greek historian and diplomat who lived during the 4th century BC. He served as an ambassador of the Seleucid Empire, under the reign of Emperor Chandragupta Maurya, in the court of the Mauryan Empire in India.

2. Megasthenes' works
Megasthenes wrote several works, including "Indica" or "Indika," which is considered his most famous work. In "Indica," Megasthenes provides a detailed account of the Indian subcontinent, its geography, culture, and political organization. He also wrote about the Mauryan Empire and its ruler Chandragupta Maurya.

3. Subjects dealt with in Megasthenes' works
Megasthenes' works primarily focused on the Indian subcontinent and its various aspects. Some of the subjects he dealt with include:

- Geography: Megasthenes provides descriptions of the Indian geography, including rivers, mountains, and natural resources.
- Culture: He writes about the customs, traditions, and social structure of the Indian people, including their religious practices.
- Political organization: Megasthenes offers insights into the political organization of the Mauryan Empire, detailing its administrative structure, military organization, and governance.
- Economy: He discusses the Indian economy, trade routes, and the wealth of the region.
- Fauna and flora: Megasthenes describes the diverse flora and fauna found in India, including information about elephants and exotic animals.

4. Importance of Megasthenes' works
Megasthenes' works are considered valuable sources of information about ancient India. His detailed observations and descriptions provide historians with insights into the political, cultural, and economic aspects of the Mauryan Empire and the Indian subcontinent during that period.

In conclusion, Megasthenes, a Greek historian and ambassador, wrote about various subjects in his works, primarily focusing on the Indian subcontinent. The letter "G" in the table stands for Greek, indicating Megasthenes' nationality and the origin of his writings.

Megasthenes, a Greek author, wrote about India. In the table, "G" stands for Greek.