Calendar Generator program is written in C++ in Windows platform (Visual Studio 2019). The Visual Studio solution can be found in generateCalendar\generateCalendar.sln. The executable is in generateCalendar\Release\generateCalendar.exe. The html file is created in the same location as the executable with the name index_<year>.html.
The program generates calendars for the requested year as well as its previous and next years. Each year is stacked in column.
> generateCalendar <year> or > .\generateCalendar.exe <year>
Example:
> generateCalendar 1800 generates index_1800.html in the same location as the executable.