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Credits & licenses

Thinking Sproutsis built with care. Some materials come from open projects we're grateful to share and credit below.

Open English WordNet

Word definitions and linguistic data used when building reference materials. License: CC BY 4.0.

Wikipedia word-frequency data

Frequency lists used as a reference when curating age-appropriate vocabulary. License: MIT.

OpenMoji

Emoji artwork used in Olympiad and other illustrated activities. Emoji artwork by OpenMoji – the open-source emoji and icon project. License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). CC BY-SA 4.0.

Twemoji

Emoji artwork used in Olympiad and other illustrated activities. Emoji artwork from Twemoji (Twitter / jdecked fork). License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). CC BY 4.0.

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