I´ve been reading a very interesting book over the last couple of weeks, called
"Guns, Germs, and Steel", which purports to be the "history of everybody for the last 13,000 years".
It tries to explain how certain civilisations got to be the ones that did the conquoring, while others became the conquored, and it arrives at some pretty surprising conclusions. In the largest part, the factors that made the difference are the ability to produce food surpluses through agriculture, often because of the luck of certain societies having domesticable crops, animals, and a good climate. I.E. Not much credit can be given for differences between races or cultures.
However, this book also carries out some of its investigation by looking at the similarities between langauges, and for me it´s been fascinating to find how history can be traced by the development of langauge.
For example, many languages in the world belong to certain groups and can be traced back to certain root languages. In the case of English, this language belongs to the Indo-European group and includes many similarities with other languages in the group, including Latin, Spanish, Russian and Sanskrit.
One way to date historical developments is to look at the languages in a particular group, and to see whether they share similar words for certain objects/concepts, or whether they each have unique words for these objects and concepts.
If the languages in the group share similar words, then it is highly likely that they already had these particular words before they branched from the root language.
For instance, the word for "sheep" in the languages of the Indo-European family are quite similar: "avis", "avis", "ovis", "oveja", "ovtsa", "owis" and "oi" in Lithuanian, Sanskrit, Latin, Spanish, Russian, Greek and Irish respectively, which strongly suggests that sheep had been domesticated by the people using the original root language of the Indo-European family before the other languages branched off.
You might think that the above list doesn´t include English "sheep", which is very different, but the interesting thing is that English has the word "ewe", which is related to the above list.
Apparently, by looking at the sound shifts of the Indo-European languages over time, it looks like the original word for "sheep" was "owis" in the root form of the language that was spoken 6000 years ago.
One European language that shares very few similar words with other languages is the
Basque language, which somehow has managed to survive as an island of uniqueness in the sea of European languages which share much of their vocabulary. There´s a lot of speculation about the origin and history of the Basques and their language, and they certainly have a strong local identity here in the north of Spain.