in the past, up to

[navi tasan]

Are these sentences correct:

1-The emphasis of the book was on societies that existed in the past, up to 7000 years ago.
2-The emphasis of the book was on societies that existed in the past, until 7000 years ago.
3-The emphasis of the book was on societies that existed in the past, before 7000 years ago.

[bhaisahab]

Are these sentences correct:

1-The emphasis of the book was on societies that existed in the past, up to 7000 years ago.
2-The emphasis of the book was on societies that existed in the past, until 7000 years ago.
3-The emphasis of the book was on societies that existed in the past, before 7000 years ago.

I would go with #1.