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From Wikipedia, the free encyclopedia

Yusnier Viera
Yusnier Viera.jpg
Viera in 2012 at the Mathematikum Museum, Giessen, Germany.
Born (1982-04-26) April 26, 1982 (age 38)
NationalityCuba, United States
Alma materUniversity of Havana (2005)
AwardsMental Calculation World Cup 2010 (1st Place Calendar Memory)
Guinness World Record 2005, 2006, 2009, 2010, 2011, 2015, 2018

Yusnier Viera (born April 26, 1982) is a Cuban American mental calculator. He is well known as "The Human Calendar" for his world record on calendar dates.[1] On October 31, 2005 he broke for first time the World Record for calendar calculations. At the Mental Calculation World Cup in 2010 he won the calendar category. He currently has three World Records for calendar calculations.[2][3]

Viera has appeared in prestigious TV channels like CNN & ABC and has starred on the international Discovery Channel Series "Superhuman Showdown" (trailer). In early 2014, he participated in the Latin American show "Super Cerebros", of NatGeo. He won the first round and $4,500 of cash prize, reaching the final round of the show.

Due to his extraordinary skills, University of Sussex neuroscientists took fMRI scans of his brain.[4] In the study, he also completed a computerized version of the Raven's Progressive Matrices Test with an IQ score of 157 (standard deviation of 15). The scientists concluded that his expertise is a result of long-term practice and motivation.[5]

On 2016, Yusnier participated in the Fox show "Superhumans" where he showed a new skill called "flash math". Later, he was invited to "The Ellen DeGeneres Show"  for an impressive demonstration.

Recently, he published the books Basic Course of Mental Arithmetic and Master the Multiplication Tables.[6]

YouTube Encyclopedic

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    1 172
    14 834
  • ✪ Yusnier Viera, the "Human Calendar" of MDC Homestead
  • ✪ Curso Básico de Cálculo Mental (Fechas del Calendario) - Parte 8/9
  • ✪ Nelson Dellis' MIND SHOW - Yusnier Viera // Human Calendar


Television Shows

Year Title Network
2012 Super Human Showdown Discovery Channel
2014 Super Cerebros NatGeo
2016 The Brain Fox Channel
2016 The Ellen Show CBS, American Broadcasting Company
2017 Don Francisco Te Invita NBCUniversal
2020 The Wall NBCUniversal


  1. ^ Calendar Calculation World Records 
  2. ^ Young cuban fourth in mental calculus olympiad
  3. ^ Cuban prodigy up for another Guinness Record
  4. ^ Maths experts are “made, not born”, Sussex study shows
  5. ^ Effective Connectivity Reveals Strategy Differences in an Expert Calculator
  6. ^ "Yusnier Viera". Create Space. Retrieved 2013-01-04.

This page was last edited on 27 August 2020, at 19:30
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