Difference between Date back to something and Date from something

date back to something—go back in time to a particular date:

• The rare binding of this manuscript dates back to the late middle-ages.

Note: The expression does not correlate in meaning with the phrase backdate something—

1. put an earlier date to a document than the actual one:

• The vet backdated the vaccination dates for horses in an attempt to satisfy Jockey Club rules.

2. make smth. retrospectively valid:

• The wage increases are to be backdated to the first of January.

date from something—be in existence since a particular time:

• This building dates from the beginning of the last century.