HomeMass AttemptLARGEST ABACUS LESSON LARGEST ABACUS LESSON by abradmin/ December 11, 2019/ Mass Attempt/ UCMAS set a record for conducting the largest abacus lesson, with 2,231 participants, at The Premier Center Sen Sok, Hnom Penh, Cambodia, on December 7, 2019. The record was felicitated by the Education Minister of Cambodia, Hangchuon Naron. Tweet About The Author abradmin Related Posts MOST KITES FLOWN SIMULTANEOUSLY by Asia Book of Records Team/ MOST PEOPLE PARTICIPATING IN FUN RUN by Asia Book of Records Team/ LARGEST NUMBER OF PEOPLE DRESSED AS DIFFERENT GODS-GODDESSES & EPIC CHARACTERS by abradmin/ LARGEST HUMAN FORMATION PORTRAYING GREEN REVOLUTION by abradmin/