He studied under various persons , including Tyrannion , a captive educated Greek and private tutor , who instructed Cicero 's two sons .
Strabo visited Rome in 44 BC at age 19 or 20 apparently for purposes of education .
Strabo studied under various persons , including Tyrannion , a captive educated Greek and private tutor , who instructed Cicero 's two sons .
Strabo visited Rome in 44 BC at age 19 or 20 apparently for purposes of education .