1913
Cardiff was the world's largest coal-exporting port at peak in 1913
with 10.7 million tonnes of coal exported annually.
On this day
December 20
Cities around the world keep their histories on dates. Here is what happened on December 20 across the 1 editorial events Pyflo has so far catalogued for this date.
1 event
1 century
1 country
Drawn from the Pyflo Atlas — an interactive timeline of 1,601 editorial events reaching back to 2100 BCE, each pin a deep link into a city's full story. Watch history play out on the map →