How did Polybius connect events in Italy and Africa with events in Greece and Asia?

Polybius connected events in Italy and Africa with those in Greece and Asia by framing his work as a universal history that captured the rise of Rome as a singular, organic process.12

He argued that prior to 220 BCE, world events were essentially a series of disconnected transactions. However, he believed that starting from that date, history became an "organic whole" where the affairs of Italy and Africa (Libya) became inextricably interlinked with the developments in Greece and Asia.12

Polybius attributed this unification to the influence of Tyche (Fortune), which he viewed as a directive power that guided the world's affairs toward a single goal: the establishment of Roman world dominion. Because Rome’s expansion brought these disparate regions under one political system, Polybius maintained that only a comprehensive, synoptic view could adequately document how these formerly separate theaters of action were drawn into a unified historical narrative.12