There's a new version of Google Maps for the web but so far it's not for everyone. You need to request an invite and not everyone gets one of those it seems. But if you're impatient or curious and don't mind a tiny amount of technical hackery you can get to test drive the new version without the need to be one of those blessed with a preview invite.

If you go to Google Maps right now, you'll still see the current incarnation of Google's map. This is what the map of my home town looks like. The new preview version is there, you just can't see it.

Governments and authorities like maps. They're a useful way of clearly saying this is mine, that is yours. They're also useful for saying where you can and more importantly, where you can't go. This is all too evident in a surprising map of where Russian visitors to the US were permitted to visit during the 1950s.

In the mid 1950s America and Russia were in the middle of the game of oneupmanship, with added nuclear weapons, that was the Cold War. Despite the uneasy detente between the two countries, if you were one of an elite group of Soviet citizens you were actually able to visit the United States. But not all of it. Large swathes of the US were closed to prospective Soviet tourists.

In January of this year I made a hopeful prediction that 2013 would be the year of the tangible map.

This hope was prompted by the maps I saw at one of London's geomob meetups in November of 2012, where I saw and, importantly for a tangible map, touched Anna Butler's London wall map and a prototype of David Overton's SplashMap.

The hopeful prediction was made as a result of literally getting my hands on one of Anna's London maps and it's a treasured possession, though still sadly needing a suitable frame before it can take pride of place on a wall at home.

But what of SplashMaps? In November 2012 the project was on Kickstarter and I was one of the investors in this most tangible of maps. In December 2012 Splashmaps met their funding targets and went into production and today, through the letterbox came my own, tangible, foldable, scrunchable and almost indestructible SplashMap of my local neighbourhood.

The boundaries of Europe's constituent countries have changed a lot in my lifetime. Some countries don't exist anymore whilst others have come into existence. But it takes a map visualisation to make you realise just how much the map of Europe has changed.

Actually, it takes two map visualisations. The first, courtesy of the BBC, dates from 2005 and covers the years between 1900 and 1994. Starting wit Imperial Europe and fast forwarding though two world wars, plus the Cold War and taking in the collapse of the Communist Bloc and the expansion of the European Union.

Back in February of this year, at the height of the madness that was the Vaguely Rude Places Map, Ed Freyfogle from London's #geomob meetup got in touch and asked me to come and tell the story behind the map. This is that story.

And so last night, in the Chadwick Lecture Theatre in the basement of London's UCL, after listening to some amazing presentations on building a map of mobile cell tower coverage, of building a seismically powered alternative to GPS and a whole host of other great talks, I took my place on the podium and started where any good story needs to start ... at the beginning.

If there's an unwritten law of digital map making it is this: given a data set with a geographical element, someone, somewhere, will probably make a map out of it.

A prime example of this law is mining data from Encyclopedia Metallum detailing the Heavy Metal bands per country and mashing it up with population data from the CIA World Factbook (yes, this really exists) to make a map of Heavy Metal bands, by country, per capita.

Each time I find a new map I always end up learning something, sometimes directly from the map, sometimes from the content of what the map is trying to show. But I always end up learning something. In the case of this map, from H. W. Hill and Co from Decatur, Illinois circa 1884, I learnt that ...

• That you really can put pigs on a map.
• That in the 1880s each US state (apparently) had a nickname for a pig. Or is it that the States have nicknames that are best represented by pigs? Or maybe something else entirely.
• What a hog ringer is. Apparently it's a device for putting rings in the noses of pigs. Ouch.