I've been working with SQL Data Services and that requires some data to use. Here is a zip file that contains both the XML and a command file that you can use with the SQL [Server] Data Services Import/Export tool to load the data into your own instance. The easiest way to do this is to set up a container named calendar-of-events using Mike Amundsen's S[S]DS Provisioning Client. Then you can run the command file with parameters:

LoadCalendarData Authority User Password

This will load 241 holiday dates for 8 separate web site ids. To test everything is loaded, you can use the following query in the Entity Query on Mike's site:

from e in entities where e["WebSiteID"]=="W8" select e

That should get you 241 entries, numbered 1688-1928.

Enjoy

This particular task took me longer than it should have because I was using everyone's favorite database, Microsoft Excel, to create the XML file. I had the data for WebSiteID=1 and decided it would  be quick to just load that into Excel and then copy it and do a little formula jiggery-pokery to get the updated values. Unfortunately, I didn't take into account the header row and it took me 45 minutes to figure out why the data was not loading...