Who was the famous explorer who said the great barrier reef was ¨a wall of coral rock rising almost perpendicular out of the unfathomable ocean

I believe the answer is :james cook

James cook was a very well known british explorers who is held in high regards by the King. He's known for his accomplishment in finding the route from Europe to Australia/new zealand. He managed to obtain the position as the ship captaind due to his accomplishment in seven years of war.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.

idk