Use the red slider below to choose a date range and discover how many blue plaques have been made in commemoration of people of that era, and in which boroughs these plaques featured on houses in London can be found. The different colours represent the various professions and industries for each notable figure.

Boroughs in blue represent those home to plaques and boroughs in grey represent those without any blue plaques at that time. Click on the blue boroughs to see exactly how many plaques existed there in each era in the circle on the right.

Choose a borough



Select different eras of recipients by dragging the red slider.


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