List of references and foreshadowing about the Moon Sisters for the uninitiated!

So I made this post because I saw some people (just a very few people) that were confused about the new web event. Some said the Moon Sisters lore came out of nowhere and were surprised why many people were so hyped about it. Some were just curious and just want to know more about them but isn't really that deep into the lore. Some are returning players or players that have quit but are also curious about the Moon Sisters.

Moonlit Bamboo Forst Vol. 3 (Book) - Our very first introduction to the Moon Sisters in v1.0. Talks about how in ancient times, there were 3 moons in Teyvat and they rode a Silver Carriage in the skies. They share one love, and it is the Stars of Daybreak. When a great calamity struck, they turned on each other leading to their deaths and one of their remaining corpse hangs now in the sky.

Heart's Desire: Sapphire (Book) - A very short section in it mentions the name of the Three Moon Sisters: Aria, Sonnet and Canon.

Moonpiercer (Craftable 4* Spear) - A section in it talks about how Nilotpala Lotuses would bloom under the Moon Sisters' feet. Also, when 2 of the Moon Sisters died, the last of the sisters was so overcome with sorrow that she would never leave her palace again. (This leads some people to speculate that the 3rd Moon Sister could still possibly be alive.)

Nilotpala Lotus (Sumeru Local Specialty) - Talks about a folk story about the Moon Goddess and their Chariot (their Silver Carriage). Just a reiteration of what we already know.

Vermillion Hereafter: Solar Relic (Artifact) - When the Moon Sisters died, the Solar Chariot fell into the Chasm in Liyue.

Tsurumi Island (Inazuma Island) - Underneath Tsurumi Island, there are murals that shows ancient people worshipping the moon.

On The Trail of Behemoths (Event) - Helka talks about the Frostmoon Scions in Nod Krai. According to him, they worship a moon deity (most likely the Frostmoon from the web event) and there are statues of it scattered all over the place.

Crimson Moon Semblance (5* Spear) - Arlecchino's weapon talks about the Crimson Moon falling into the Abyss. In the Web Event, it mentioned "When the Iridescent Moon shattered, the Crimson Shadow sank into the abyssal sea". This leads us to speculate that the Crimson Moon is the Crimson Shadow of the Iridescent Moon.

Towards the Lighthouse, or Far Away (Simulanka World Quest) - Doesn't really say anything about the Moon Sisters directly but it contains "possible foreshadowing" about the rise of the New Moon. In this quest, we helped Esnoir to find a place where we could hang the lamp of a broken lighthouse. The lamp's light serves as a guide for the adventurers of Simulanka to find their way back home. We then make our way to the Whispering Isle where we offer 3 objects to the 3 statues of the Goddess of Fate. The lamp then floats in the sky and transforms into a moon guiding back adventurer's (specifically Esnoir's friend) back home.

Natlan AQ Spoilers:

Natlan AQ Act 4 - Reveals the fake sky and the shattered moon behind it.!<

Natlan AQ Act 5 - Mavuika talks about the shattered moon being the creation of ancient dragons (This is how I understood it. Others might have a different take on it. I might be wrong though.)!<

Edit:

Records of Jueyun Vol. 4 (Book) - Mentions the 3 Moon Sisters of the Lunar Palace and how they were present in a marriage between a Seelie and a Traveler from afar. 30 days later, the great calamity struck and the Seelie and her lover were punished. The Seelie race have also been stripped of their voices and wisdom.

Edit 2 (Thanks u/Better-Movie-7736):

Springs of Hidden Jade Vol. 2 (Book) - A section of it mentions when the Lunar Palace fell and the Moon Sisters were slain (slain by who? I thought they killed each other), the Heaven's rained down cruel order, the stars stilled their orbits, and the earth ceased to turn. The wiki links the cruel order to Celestial Nails.