Languages from the past is really impossible to say how it was transmitted since we don't have time machines, all our "facts" about the past that no one really knows of are theories and i have one of my own. How language was transmitted back way back from anyone's' possible thoughts you might think of cave men with a lot of improper speech (Ex - "Me go find food.") but in my own theory i think that it wasn't really a lot of talking i feel as if it was just a lot of doing what the early humans thought first until we started to evolve more and more, so instead of doing without caution its mindless. When i think of cave men (Early humanity) i think of a lot of family's and fighting between them because they don't know how to think properly or speak yet. Obviously sooner on we started to think and learn more and time went on and we made up our own languages across the globe instead of possible grunting and groaning and hand language. As time is today from all of what we have discovered the languages we know we can all learn and that's how we evolved within out languages because we learned more and more from the others around us.
I know i put it in my own theory and words but if you don't end up copying it i hope it gives you a general idea. Have a good day, and Good Luck!
I took the other guys answer and made it make more sense for you all
Explanation:
When looking at languages from the past for the most part it's almost impossible to truly know how they were transmitted, since we don't have time machines, all our "facts" about the past and how language has evolved are generally theories. If you were to think back to the very beginning of how language was originally used, you may think of cave men, who used lots of improper speech (Ex - "Me go find food.") but in reality, in the beginning it was most likely just grunts and sounds used to indicate certain actions, or calls for a group to find one another. This was until we started to evolve more and more, and our use of language became more complex and fleshed out. Over time as humans traveled and emigrated to new places, language began to develop even further as people began to share ideas and different forms of it. So after a while early humans started developing and sharing multiple different complex languages instead of just grunting and groaning and possible hand signals. Today, from all that we have discovered from ancient languages, we can conclude that language is constantly evolving and changing. It's very possible hundreds of years from now the languages we use today will be considerably different.
the civil war between the Redcoats and the blue coats should never have happened but the political aspect was to actually fund more pockets for the government of United States there for not giving the salt their rights and demanding them to take down what they believe in and their flags and not cast of finding it there for the north should never overrun the salt in the ocean ever run north there are two equal and shoe compatible the without the North and the South America would not survive or stand against anybody