Pompeii was known from early historical times from the writing of Pliny the Younger, an eye witness to the eruption. Although there was some knowledge of the site from 1599 its magnitude was better understood from 1748.
i think it would be the Romans i'm not exactly sure though
The Republic Flaws Of Weimar
Philippine sea, sea of Japan and Pacific Ocean.
The Islands of Japan are so narrow that no point in the country lies more than 150 km (93 miles) from sea waters.
To the West, there is the sea of Japan, which separates Japan from the Asian mainland. To the north, lies the sea of Okhotsk, and to the south is the East China sea. All these are extensions of the Pacific ocean which lies to the east of Japan. To the far south-east lies the Philippine sea.
It was much lighter and easier to carry unlike the coins they normally used.