126 years old now in 2025 - what year born?

Today, 16 June 2025 if a person is 126 years old now, what year was he born? See below:

If 126 years old, year of birth is:
1898 or 1899*

*It depends on whether he was born before or after 1 January 1899.

If now 126 years and his year of birth 1898 if he was born after 16 June 1898 until 31 december 1898 inclusively, and his year of birth is 1899 if he was born from 1 January 1899 to 16 June 1899.

Other examples:

If now 11 years, year of birth 2013 or 2014
If now 12 years, year of birth 2012 or 2013
If now 25 years, year of birth 1999 or 2000
If now 58 years, year of birth 1966 or 1967

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