Thanks Ajita, yes the e-library has very active and a large amount of OER contributions, almost 20,000 items.
I was looking at just a specific part of the collection that was listed as OERs mapped to the national curriculum, as that was the approach that @wernerio shared in his work in Chile. I was anxious to see that this had been done elsewhere. I could only find dates by exploring the different categories, and it seems like this work was organized in 2015-2016.
This was just from a quick exploration within the site.