The event that hindered Koreans' construction of cultural and performance identities in the first half of the 20th century is Japanese colonization.
The Japanese Empire's annexation of Korea shattered the cultural identities of the Korean people, including the several waves of abuse that were unleashed on their psyche.
During the Japanese colonization, lasting 35 years, the Korean people suffered under the heavy yoke of Japan.
Thus, the event that hindered Koreans' construction of cultural and performance identities in the first half of the 20th century is Japanese colonization.
Learn more about the Japanese colonization of Korea at https://brainly.com/question/10896873
