The Imo incident occurred
The Imo incident occurred in response to modernization during this period, and the "Strife of the Princes" was an early struggle for power during it. Cultural developments included the painters known as the 'Three Wons', and the Gabo reform changed the long-standing division into eight provinces. Arising due to the rebellion of one of King U's generals, it quickly moved the capital to Hanyang. It won the Injin war thanks to Admiral Yi Sun-sin, and was forced to sign the Treaty of Ganghwa. Also known as the Yi dynasty because of its founder, King Taejo, and its turtle ships emerged victorious at the Battle of Noryang Point against Toyotomi Hideyoshi. For 10 points, name this last Korean dynasty which lasted from 1392 until 1910.
The Imo incident occurred in response to modernization during this period, and the "Strife of the Princes" was an early struggle for power during it.
Joseon Dynasty [or Choson; accept Yi Dynasty before mentioned]