Can ancient calendars be considered engineering or physics inventions?

[kaleidoscope]

I was wondering if the early calendars developed by mankind can be considered engineering or physics inventions, as they were developed to count or measure time. Any opinions about this?

 

[mfb]

Both?
You need physics to know what you want to build, and engineering to build it.

 

[Jobrag]

I think that they were probably a theological invention, if in a primitive society you could foretell the time to plant crops, the changing cycle of tides or when animals would start to migrate than you'd be a wise man who communicated with the Gods and thus got the best of everything.

 

[phinds]

I agree w/ mfb. Why do you feel the need to put a lable on them?