Roman Empire
The Fall of the Western Roman Empire (also called Fall of the Roman Empire or Fall of Rome) was the process of decline in the Western Roman Empire in which the Empire failed to enforce its rule, and its vast territory was divided into several successor polities.
Invasions by Barbarian tribes
The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders
Explanation: Before Japan became a warrior society, the country was already a patriarchal society which valued men much more than women. However, the impact of this was limited to smaller areas of influence because women performed valuable work and men were not particularly powerful. However, these ideas became a lot more dominant after men were able to gain more power. As the qualities of a warrior became more celebrated, those that were different became more dismissed. Therefore, the role of women was devalued as they had no participation in war activities.
That would be unskilled laborers.
The middle class wasn't poor like the unskilled workers in the factories and farms, but they weren't very rich either like the corporation owners and high-up businessmen.
Triple alliance was actually a military alliance between the countries Germany, Italy and Austria-Hungary. This alliance was formed on 20th of May in the year 1882. This alliance remained in force until the year 1914 when World War I broke out. According to this agreement, each country promised to stand beside one another if any other countries of the world attacked any of them. This was completely military alliance that was forged for each others protection and so this triple alliance had one motive only and that was mutual protection.