Temporal layers for presenting personalization markers on imagery

A non-transitory computer-readable medium having instructions stored thereon that, when executed by a processor, cause performance of operations comprising:

• displaying, at a computing device, a map of a geographic area;
• receiving, at the computing device, a user input to identify temporally related place markers, the user input specifying a time constraint;
• issuing a request from the computing device to a server system, the request based on the user input and including the specified time constraint;
• receiving, at the computing device and from the server system responsive to the request, temporally related place markers that satisfy the time constraint specified in the user input, the collection including a first place marker that was identified for inclusion in the collection based on a determination that a historic time interval assigned to the first place marker satisfies the time constraint, the historic time interval (i) defining start and end times for a historical event that is identified as having occurred at a first geographic location indicated by the first place marker and (ii) assigned to the first place marker after the end time of the historic time interval that indicates an end of the historical event;
• and
• in response to receiving the collection, overlaying place markers from the collection on the map of the geographic area displayed at the computing device, including overlaying the first place marker on the map such that the first geographic location is visually identified as the location of the historical event.

A computing device, comprising:

• a processor;
• and
• a non-transitory computer-readable medium having instructions stored thereon that, when executed by the processor, cause performance of operations comprising:
• displaying, at the computing device, a map of a geographic area;
• receiving, at the computing device, a user input to identify temporally related place markers, the user input specifying a time constraint;
• issuing a request from the computing device to a server system, the request based on the user input and including the specified time constraint;
• receiving, at the computing device and from the server system responsive to the request, a collection of temporally related place markers that satisfy the time constraint specified in the user input, the collection including a first place marker that was identified for inclusion in the collection based on a determination that a historic time interval assigned to the first place marker satisfies the time constraint, the historic time interval (i) defining start and end times for a historical event that is identified as having occurred at a first geographic location indicated by the first place marker and (ii) assigned to the first place marker after the end time of the historic time interval that indicates an end of the historical event;
• and
• in response to receiving the collection, overlaying place markers from the collection on the map of the geographic area displayed at the computing device, including overlaying the first place marker on the map such that the first geographic location is visually identified as the location of the historical event.