The user location history of past 30 days can viewed by giving the start and end date of period. Then location history of that period is shown. "S" pin means earliest and "E" the latest location in history.
Start Date and Time - start date and time of history period
End Date and Time - end date and time of history period
Show location history - shows the location history on map. "S" (start) earliest and "E" (end) latest point