Figure 4

Temporal snapshots of temple foundation events. Temple locations are indicated by the blue and red circles. At the top of the app window is a slider widget that sets the date for the visualization. Temporal uncertainty about foundation date is indicated by symbol opacity—as the opacity increases, so does the probability that the corresponding temple was founded at the time set by the slider widget. The colour of a given circle indicates whether the mean estimated foundation date for that temple is earlier (blue) or later (red) than the date set by the slider. The three circles indicate areas mentioned in the text.