<http://schema.org/description>
"I am not sure how new this is, but sometime within the year, Google Maps has begun showing the date the image was taken.  Not the exact date but the month and year the image was taken with the street "^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-maps-images-dated-14728.html>