Let’s just be clear that we’re talking Western Civilization here. Other regions have different histories.
So if I were to divide history into broad strokes, we’d have:
Pre Homo sapiens sapiens. Goes back a couple million years.
Anatomically modern humanity. Something like 200,000 years ago, but going farther back the more we discover.
Behaviorally modern humanity. Something like 50,000 years ago. Now we start seeing an explosion of art, new tools, new behaviors. It’s still not clear what this was all about, why earlier anatomically modern humans didn’t seem to have the full panoply of modern human physical culture. Is it an artifact of taphonomy? Black monoliths?
The Neolithic. The first farmers. An obvious behavioral change from the hunter-gatherers of the Paleolithic. But this wasn’t some radical new discovery, hunter-gatherers knew seeds and roots grew into plants, they just mostly didn’t bother to do anything with the knowledge. They tended wild plant patches. So agriculture isn’t anything radically new, it’s just an intensification and elaboration of previous practices, which is the whole history of technological advance. Almost nothing comes out of nowhere, it’s always prefigured earlier, it’s just that nobody understood it, or could make it work, until for some reason when the time was ripe everyone started doing it.
The Ancient Era. This is all the history of the first city-states and small empires. Could also be called the Bronze age.
The Classical Era. The Persian, Hellenic, and Roman empires. Around 600 BC there’s this wave of empire-building. It’s happening over in China and India as well. I think the Persian empire doesn’t get the attention it deserves as the prototype for these empires, it’s all on the Hellenic world that replace the Persians. But without the Persians to conquer, Alexander couldn’t have left behind the Hellenic world. He “conquered the world”, if you define “the world” as “the Persian empire”. The existence of the Persian empire to conquer was a precondition of his conquering it. As for the Romans, that’s so well known not much needs to be said.
The Medieval Era. Western Roman empire falls, the Easter Empire decays into just one state among many. Of course this conflates that chaos of the Early Medieval period with the developed and stable states of the High Middle Ages.
The Renaissance. Here we get another shift. Gunpowder changes from a toy to the standard. Sailing ships head all over the world. Extracontinental empires appear. Population grows. Banking and commerce explodes. But sailing ships and horses are still the only methods of transportation.
The Industrial Age. Starting in the 1800s, we start to see steam engines, which are put to work on the existing water and wind powered factories. Railroads, steamships, telegraphs, coal power. But this also includes the age of revolutionary government. The American Revolution, the French Revolution, the South American revolutions
Now, the Modern Era. I’ll just give the transition as World War I. Again, most of the technologies that transformed the world In WWI already existed, but in WWI they ran rampant. Airpower, radio, IC engines, political organization, mass media, and the famous destruction of various monarchies. Of course we had to go through the depression and WWII, which transformed everything yet again. 1914-1945 is the transition period, everything after that is fully modern.