The big change, the really radical change in communication, was in the late 19th century. The shift from sailing ships to telegraph is astronomical. Everything since then has been small increments, including the internet.
Noam ChomskyAt the peak of the so-called great success of neoliberal economics, in 2007, right before the crash, non-supervisory workers were at wages considerably lower than in 1979, when the neoliberal assault was taking off. That perfectly naturally causes resentment and fear, and combines with a tendency to blame the most vulnerable.
Noam ChomskyLanguage would have evolved first as an internal object, a kind of "language of thought" (LOT), with externalisation (hence communication) an ancillary process. I can't review here the strong and growing evidence to support this conclusion, but I have elsewhere. There are ample reasons why having a LOT would confer selectional advantage: the person so endowed could plan, interpret, reflect, etc., in ways denied to others.
Noam ChomskyTake the US. Women were not even able to vote until 90 ago, at about the same time they gained the right in Afghanistan. Rights of former slaves were very limited until the 1960s, and in some ways still are. In these and other domains there has been progress in democracy, though still seriously flawed. In other dimensions - the control of concentrated wealth over the political process, for example, things have gotten much worse in recent years. And there is much more, in both directions.
Noam Chomsky