Why do so many civilizations thrive around seas?

So many civilizations thrive around seas because they were attractive locations and they provided a steady supply of drinking water and game, made the land fertile for growing crops, and allowed for easy transportation

Explanation:

The earliest civilizations developed between 4000 and 3000 BCE, when the rise of agriculture and trade allowed people to have surplus food and economic stability. Many people no longer had to practice farming, allowing a diverse array of professions and interests to flourish in a relatively confined area.

they required less loading and unloading

explanation:

the shipping container improved shipping because it cut down on unloading time by three weeks, eliminated wasted space, and allowed ships to carry.

answer is 1935

because gandhi led a march the sea in 1930 and 5 years later he did it again