[n.b.: "The free access starts on April 13th and will run through the end of the day on the 19th, running for the full duration of National Library Week. Access is available in the United States and Canada only" (emphasis added)]
To celebrate National Library Week in the United States (April 13th-19th) and all the hard work librarians do to support their patrons, OUP is freeing up all of our online products* for the week! Libraries are a vital part of many communities, whether it is a school, a town/city, the government, a corporation, or a hospital, and we have freed up this unprecedented amount of content to show our appreciation for these libraries.
National Library Week