So records are less than the blink of an eye taking into account the age of our earth so hardly an indication of climate change. Besides those records probably only relate to Europe and not the world.The current phase of global warming has been accurately plotted back to the Industrial Revolution in the mid 1750s when man made carbon dioxide emissions started to increase.
In comparison Europe was a minor player regarding pollution in those days as neither Africa, Asia, and the Americas etc had much of an industry at the time.