Sanskrit is the oldest classical language, with its earliest texts dating back to around 1500 BCE.

Sanskrit is a member of the Indo-European language family, and it is closely related to other Indo-European languages such as Latin, Greek, and Persian.

Latin was the lingua franca of the Mediterranean region during the Roman Empire, and it continued to be used as a scholarly and diplomatic language in Europe for centuries after the fall of the Roman Empire.

Greek and Latin are both members of the Indo-European language family, and they are closely related to each other.

Hebrew was the language of the ancient Israelites, and it is still used as a liturgical language by Jews today.

Hebrew and Arabic are both members of the Afroasiatic language family, and they are closely related to each other.

Egyptian was the language of the ancient Egyptians, and it was written in a hieroglyphic script.

Coptic is a descendant of Egyptian, and it is still used as a liturgical language by Coptic Christians today.

Chinese was the language of the ancient Chinese, and it is still spoken by over 1 billion people today.

Japanese is a descendant of Chinese, and it was heavily influenced by Chinese culture and language.

Mayan was the language of the ancient Mayans, and it is still spoken by over 6 million people today.

Mayan and Nahuatl are both members of the Mayan language family, and they are closely related to each other.

Quechua was the language of the ancient Incas, and it is still spoken by over 10 million people today.

Quechua and Aymara are both members of the Quechuan language family, and they are closely related to each other.

Chinese is considered to be the most difficult language to learn for native English speakers, due to its complex writing system and tonal language.