If you look up the definition of "year," they tell you it's the time that the Earth takes to make one revolution around the Sun:

"the period of about 365 1/4 solar days required for one revolution of the earth around the sun."

Well this obviously implies that the Earth does in fact revolve around the Sun, but of course this idea was not accepted until rather recently.

So before Heliocentrism, what did a year mean? The opposite? One revolution of the Sun around the Earth?

What did a year mean in the whole Bible? Did it mean different things at different times? Has it always been the case that 12 months makes a "year"?

If you look up the definition of "year," they tell you it's the time that the Earth takes to make one revolution around the Sun:

"the period of about 365 1/4 solar days required for one revolution of the earth around the sun."

Well this obviously implies that the Earth does in fact revolve around the Sun, but of course this idea was not accepted until rather recently.

So before Heliocentrism, what did a year mean? The opposite? One revolution of the Sun around the Earth?

What did a year mean in the whole Bible? Did it mean different things at different times? Has it always been the case that 12 months makes a "year"?

Interesting question, one I'm afraid I can't answer.

What I can answer however is that no, a revolution of the Sun around the Earth marks a day and not a year in geocentrism, and that a 12 month year hasn't been around forever. The DEC in December comes because it used to be the tenth month, before January and February were added to the calendar. A year only became 365 days with the reforms under Julius Caesar, before that it was 355 days long. Caesar's reforms led to the calendar being called the Julian Calendar for a millennium and a half until Pope Gregory XIII promulgated the Gregorian Calendar we use today.

The definition of "a year" has always been a "Solar Year". Which is the time it takes for the sun to come back to the same position in the sky. That's the same definition now as it was thousands of years ago.

It doesn't matter how long months are or how long days are or leap years.

FIRST they noticed the sun coming back to the same spot. THEN they noticed it took approximately 365 days. That would be independent of Heliocentric or Geocentric views.

How did they determine all this thousands of years ago?

How did they determine all this thousands of years ago?

There have always been intelligent people that God gave certain wisdom to figure out things. It's not like they try to tell us that we were once dumb cave men...and if anything we are much more dumber down today then people were thousands of years ago.