10,000 years calender without any methods

10,000 years calender without any methods Balivada Vishal Patnaik S/o B.Nageswara Rao (born 30th April, 2005) Jatni (Odisha) Kasibugga-Palasa Srikakulam (dist) Andhra pradesh, India.  Has created a new record he can say past or present date of B.C. to present and also future upto 1 year to 10,000 years calender by heart with out any methods from Srikakulam, Andhra Pradesh, India.