Most Pi places memorised
Who
Chao Lu
Where
China Shaanxi province
When
The record for memorising Pi was achieved by Chao Lu (China) who recited Pi from memory to 67,890 places, at the Northwest A&F University, Shaanxi province, China, on 20 November 2005. Chao Lu, a chemistry student, attempted the record after practising for 4 years. The attempt lasted 24 hrs 4 min and was recorded on 26 video tapes. News reports from CCTV (China Central Television) and from Yangling TV submitted with the claim. The attempt was witnessed by 8 officials, Maths professors of the NWAFU and 20 students to assist the witnesses.