The dating of Thallus is dependent on him writing about an event during the 207th Olympiad (49–52 AD), which means he wrote after that date, not near that date.
人们通过这样的方式确定Thallus作品的时期：Thallus写到一个发生在第207届奥林匹克运动会（公元49-52）期间的一个事件，这意味着他在那个日期之后，而不是在那个日期左右写作的。