The most promising leads end up on Jackie's radar.

- 最有前途的线索最终出现在杰基的雷达上。

These differences eventually (or in the end) led to the Civil War, which was a war where Americans fought against each other from 1861 to 1865.

这些差异最终导致了美国内战的发生。这场美国内部的战争从1861年持续到1865年。