Answer:
to celebrate the holiday
to show how the holiday started
Explanation:
This is the reading
The narrow question is whether there is a secular purpose for Pawtucket's display of the crèche. The display is sponsored by the city to celebrate the Holiday and to depict the origins of that Holiday. These are legitimate secular purposes.
—Chief Justice Warren Burger,
Opinion of the Court,
Lynch v. Donnelly
1984
From this reading it can be inferred that the city's secular purposes for displaying the crèche was to show how the holiday started and also to to celebrate the holiday.
