What were turtle ships, and what role did they play in Korean history

Developed and deployed by Korea's brilliant admiral, Yi Sun-sin, the Turtle Ship (known among the Koreans as Geobukseon) was a coastal defense galley; but one possessed of some unique features. First, it was a ship whose sides and deck were covered-over; to protect the crew from missile bombardment.

Explanation:

in february 1787, congress decided that a convention should be convened to revise the articles of confederation, the nation’s first constitution. in may, 55 delegates came to philadelphia, and the constitutional convention began. debates erupted over representation in congress, over slavery, and over the new executive branch. the debates continued through four hot and muggy months. but eventually the delegates reached compromises, and on september 17, they produced the u.s. constitution, replacing the articles with the governing document that has functioned effectively for more than 200 years.