De or het cursuscalendarium?

The correct Dutch article is:

het cursuscalendarium

Rule Words ending in -um and -ium: usually het. See the rule

How to use cursuscalendarium

the cursuscalendariumhet cursuscalendarium
this cursuscalendariumdit cursuscalendarium
that cursuscalendariumdat cursuscalendarium
our cursuscalendariumons cursuscalendarium
your cursuscalendariumjouw cursuscalendarium
every cursuscalendariumelk cursuscalendarium
which cursuscalendarium?welk cursuscalendarium?
a big cursuscalendarium / the big cursuscalendariumeen groot cursuscalendarium, het grote cursuscalendarium