Why was the Lord's Day moved to Sunday?

[dgpena]

I found the answer in the CCC # 1166 on the origin of the Lord’s day being Sunday but it does not explain why it was changed from Saturday to Sunday.
Thank you for any light you can shed on this.
Dolores pena

 

[Devon_Caffran]

The following links should assist you in understanding the Church’s observance of Sunday as the Sabbath. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.

Recommended Reading:
Sabbath or Sunday?
Is celebrating Mass on Sundays Biblical?
Does the Lord’s Day begin Saturday at sundown?
Do Catholics observe the Sabbath?
When did Sunday Mass attendance become compulsory?