Hylians have several alphabets and writing systems spanning series based on latin alphabets and Japanese syllabary.

Hylian Linguistic Timeline

Note: The Hylian Linguistic timeline is based on the official timeline from Nintendo. Adherence to the official timeline is for reference and illustrative purposes only.

Pre-Split Linguistics

The Legend of the Goddesses and the hero

Creation	The Creation of the Land and Sky
Era of the Goddess Hylia		Skyward Sword Latin Based Alphabet
Force Era		The Minish Cap Kana Based Writing System (With dakuten and handakuten)
		Four Swords TODO
		Ocarina of Time Kana Based Writing System (No dakuten and handakuten)

The Legend of the Goddesses and the hero

	The Imprisoning War
Era of the Light and Dark		A Link to the Past Book of Mudora Ideographs (Not A Writing System)
		Oracle of Ages and Oracle of Seasons
Golden Era
		Link's Awakening
	The Monarchs of Hyrule Use The Triforce
Era of Decline	The Tragedy of Princess Zelda I
		The Legend of Zelda
		The Adventure of Link

The Legend of the Goddesses and the hero

	The Imprisoning War
Era of the Light and Dark		A Link to the Past Book of Mudora Ideographs (Not A Writing System)
		Oracle of Ages and Oracle of Seasons
Golden Era
		Link's Awakening
	The Monarchs of Hyrule Use The Triforce
Era of Decline	The Tragedy of Princess Zelda I
		The Legend of Zelda
		The Adventure of Link

The Legend of the Goddesses and the hero

	The Imprisoning War
Era of the Light and Dark		A Link to the Past Book of Mudora Ideographs (Not A Writing System)
		Oracle of Ages and Oracle of Seasons
Golden Era
		Link's Awakening
	The Monarchs of Hyrule Use The Triforce
Era of Decline	The Tragedy of Princess Zelda I
		The Legend of Zelda
		The Adventure of Link