Which civilizations did the Romans have contact with through trade around 200 CE?

The Antonina dynasty was the ruling house in the Roman Empire between 96 and 192, being 96 years, and therefore the longest dynasty. The first five members are also known by the name of the Five Good Emperors, a name proposed by Machiavelli and promoted by the historian Edward Gibbon, whose principalities he said were "the happiest time in the history of mankind."

After the definitive annexation of the kingdom of Judea in 93, a small territorial band united this province with that of Egypt. The Nabataean reign of Arabia threatened this line of vital communication by its geographical location in wedge. In addition, the Nabateans, people of Bedouin caravans, served him to Rome for trade with the Red Sea, and perceived by the passage, obviously, a commission. These two reasons convinced Trajan to conquer the kingdom of Arabia. He entrusts A. Cornelius Palma, one of his best generals, who was a legate from Syria, with the annexation of the kingdom, which was concluded without showing excessive resistance in 106; the province of Arabia had been created.