You can add BC dates in your family tree manually either on your family site online or in Family Tree Builder, as shown in the examples below.
Please note: The BC dates will be considered a free text. They cannot be used to calculate ages or other family statistics.
If you are editing your tree online, change date’s format to ‘Free text’ and then add the date as follows:
If you are editing your tree in Family Tree Builder program, just type the date manually, and it will automatically change the date format to ‘Free text’.