id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ape-3815	Sun, Keren	On the Four Eras of the Use of the Ocean by Mankind	2021	16	.pdf	application/pdf	6712	327	59	Before the invention of cars and trains, sea transportation must have been faster than land transportation. Transportation by sea was a great asset to the ancient Greeks, with the help of ocean trade, the ancient Greeks accumulated and created more wealth: “In ancient Greece, nearly 700 small communities were within forty miles of the coast.	cache/ape-3815.pdf	txt/ape-3815.txt