StoryMapJS is a project by KnightLab which aims to help journalists and historians tell stories by using maps using a straight-forward and simple authoring tool. It is constructed around a framework of highlighting the locations of a series of events. As an editing tool, it is relatively intuitive and easy to use.
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StoryMapJS was used in this research abstract https://dh2018.adho.org/en/digital-humanities-storytelling-heritage-lab/