Write a C++ program which includes calendar such as Month, year, event
that happened that year.  It could be BC or AD

mfc or dos based?

Visual C++

It's very simple.
If you are working with Vc++ 5 or 6  you can create a dialog window
and  then from the Controls Menù select the control:
"Month Calendar" or "Date Time Picker".
Insert it in the window in the place you want.
Then click (right) on the control:
Select ClassWizard and from the "member variable" section select the
id from the window and push "Add Variable".
From the new window select then Category -> Control and give the
control a name (es. m_Date).
Now you can control you calendar from your program simply using the
methods of the CDateTimeCtrl class. You can take a  look on MSDN help
for VC.

Hi.