Which dictionary brand first introduced the now-iconic thumb indexes (the notched edge tabs) as a marketing innovation to help users quickly find letters?

In the world of language and linguistics, certain marketing strategies have revolutionized how we access language tools. Dictionary companies have employed various brand mascots and marketing approaches to stand out in a competitive market. This poll tests your knowledge about a significant marketing milestone in dictionary publishing that changed how we think about language reference materials.

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Merriam-Webster
Oxford English Dictionary
Collins Dictionary
American Heritage Dictionary