Not everyone, there are Greeks there for example, but Germans were barbarians though at this point, no doubt. Even Hitler himself agreed, when he got second hand embrarrasment from Himmler lauding the ancient Germans.
Chinese civilization btw was also tribal for Xia, Shang and at least first half of Zhao periods, which is comparable to Greeks developing statehood and way behind fertile crescent.
Depending where and when. Peasant work was largely depend on season, so in winter they werent working much, in harvest season their asses were falling off. Averagely it probably was around the 8 hours per day, but it usually was from dawn to dusk, but they were making breaks for meals and rest.
Serfdom changed things much, Marx wrote about it in Capital, where he noted that after introducing serfdom and its variants (Lenin also write much about practical serfdom in Russia even after the “abolition”), the peasants got exploited so much that it often caused physical extermination for them.
Kalashnikov with “under no pretext” in the front
Wall of text with context on the back
Or classical “A spectre is haunting Europe”, if you’re European. If not, “A spectre is haunting Earth”
While i don’t think it is exactly like this, you must remember where the real power directing the Anglo empires lies, or rather where it moved during the first half of XX century and where it firmly stays since. Not in Buckingham Palace, certainly not in the Parliament, and not even in the White House. But in Wall Street, London City, etc. From this point of view, the fall of british and rise of american empire was simply restructurisation.