King Jijeung’s Reforms
King Jijeung fixed the country’s name as Silla and the ruler’s title as wang (king), promoted ox ploughing and banned human sacrifice at burials.

Eggmoon · CC BY-SA 3.0 · Source
"Silla" was glossed as "virtue renewed daily, embracing the four quarters". Jijeung encouraged ploughing with oxen, banned burying attendants with the dead, set up a market and market office in the capital and created provinces and counties.