Here is a page for Pre-modern weapons: https://en.wikipedia.org/wiki/List_of_premodern_combat_weapons

Here is a page for Medieval wepons: https://en.wikipedia.org/wiki/List_of_medieval_weapons

Here is a list of every language in the world: https://en.wikipedia.org/wiki/List_of_languages_by_number_of_native_speakers

Here is a list of every religion in the world: https://en.wikipedia.org/wiki/List_of_religions_and_spiritual_traditions

Here are posionous plants: https://en.wikipedia.org/wiki/List_of_poisonous_plants

Here are plants in general: https://en.wikipedia.org/wiki/Category:Lists_of_plants

Here are what some cultures and peoples believe plants mean: http://www.almanac.com/content/meaning-flowers

Here are some gemstones and metals, and what they look like: http://www.minerals.net/GemStoneMain.aspx

Here are some spiritual meanings behind gemstones and metals: http://www.wicca-spirituality.com/gem-stones-meaning.html

Here is a bunch of greek legends and myths: http://theoi.com/

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