126 years old now in 2025 - what year born?

Today, 7 November 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 7 November 1898 until 31 december 1898 inclusively, and his year of birth is 1899 if he was born from 1 January 1899 to 7 November 1899.

Other examples:

If now 10 years, year of birth 2014 or 2015
If now 15 years, year of birth 2009 or 2010
If now 30 years, year of birth 1994 or 1995
If now 75 years, year of birth 1949 or 1950

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