Combine birth day and death date

[GVodyanov]

Fix #4181

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 11.13%. Comparing base (44f4c7b) to head (f419540).

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #4367   +/-   ##
=========================================
  Coverage     11.13%   11.13%           
  Complexity      265      265           
=========================================
  Files           122      122           
  Lines          5541     5541           
  Branches       1185     1185           
=========================================
  Hits            617      617           
- Misses         4802     4803    +1     
+ Partials        122      121    -1     

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