I would say the house. There many more representatives than senators. So it stands to reason that they would have more calendars.
The House of Representatives has much stricter rules than the Senate (mostly because the House has so many more members that without strict rules, it would be almost impossible to accomplish anything).
Calendars come in many types, shapes and sizes, so there is no specific answer to your question.
It desides what bills will be considered by the full house.
Because there are many different people and cultures in the world. Just like different countries can have different languages or traditions, they can have other different things, including calendars. Many are based on religion and so they measure from different points in time that are significant in that religion.
You can hang calendars any place you want really. A good place is by a telephone so if any appointments come up you can just mark them on easily without having to run around the house .
There are so many sites for free calendars! Many charities will send you one with information on how you can donate if you wish. But the calendar is free.
There are so many rules with so many exceptions to those rules. The English language is compiled from so many historical, modern, and informal sources, that it isn't possible to apply a single set of rules.
we dot really know people in the old days didn't have calendars so they didn't know
yes the can
there are so many
Different cultures and societies have developed their own calendars based on astronomical events, religious beliefs, historical events, or practical considerations. This has led to a wide variety of calendar systems being used globally. Additionally, some calendars are specific to particular cultures or religions, leading to multiple calendars being used concurrently.