Good idea! This gives me the reason / motivation that I needed to decide, for instance, how old my main characters actually are.
I'd already begun to think of it a little in relation to my latest story (posted today), which is largely set in the past.
Here goes. Consider this provisional; it may need adjusting.
Apart from births, these are all events seen or mentioned in my stories.
1607 AU: Shelny sprouts from a seed in Tolmeshal.
1732 AU: Shelny renounces eating any being capable of feeling pain (although she has occasional lapses before managing to hold to her diet). Little by little, she becomes a point of temporary refuge for travellers in the forest.
1756 AU: Ajab and his two brothers hatch on the edge of Chidokai, near the foot of a mountain.
1761 AU: Ajab's parents resettle their little family in Tolmeshal, where the children will have more opportunities to socialise with other nagas.
1765 AU: Ajab's parents decide their children are old enough to fend for themselves. They return to Chidokai while the boys remain in Tolmeshal.
1784 AU: Ajab conceives a son, whose mother does not allow him to maintain contact with the boy.
1809 AU: A tribe of fairies settle in Shelny's area of the forest, and befriend her.
1837 AU: Ajab takes part in the "Great Destruction" of Negav.
1870 AU: Ajab spends several months off-world. It is not his first departure from Felarya.
1984 AU: Yemic is born in the Fairy Kingdom.
2020 AU: Mieleti is born in Hell.
2022 AU: Roshan is born on the crime-ridden human world Ordona Prime. His mother abandons him into the care of his depression-prone father.
2029 AU: Milly is born, the second of three children, in a sparsely settled giant rural village on an alien world.
2030 AU: Enita is born, close to where Shelny is rooted.
2031 AU: Jissy hatches, before her two siblings, in Tolmeshal. Days later, she's kidnapped, taken to Ordona Prime, and entrusted to a human family by her buyer, Alez Lahmit.
2034 AU: Isham is born, on a human world, in a peaceful, technologically advanced society.
2038 AU: On Ordona Prime, Alez Lahmit takes full possession of Jissy, removing her from her foster family and maintaining her captive.
2039 AU: Tina is born, into the Alsumi tribe.
2039 AU: Canni is born in Tolmeshal.
2040 AU: Elia is born, into a rural aristocratic family on a remote human world.
2040 AU: Hlaani is born, near the Oloonde Lakeland.
2041 AU: Shaan is born in Tolmeshal.
2041 AU: Tan is born, among the Alsumi.
2042 AU: Calina is born, in Tolmeshal.
2042 AU: Lucilya is born, near the Fairy Pond.
2043 AU: Selima hatches, in the forest near the ruins of Ur-Sagol.
2044 AU: Vuni is born in Bulvon Wood.
2046 AU: In accordance with tradition, Milly leaves her home, and travels off-world.
2046 AU: Joanna is born, in an artificial village in an industrial snacka-farm.
2046 AU: Meszlaha is born, in Tolmeshal.
2046 AU: Tiasha is born in Bulvon Wood.
2046 AU: Canni's mother disappears, presumed killed, leaving the little dridder an orphan.
2047 AU: Happy sprouts from a seed in Ur-Sagol.
2047 AU: Shaan is orphaned when a giant mermaid eats her mother. Canni finds her, and Happy. The two girls settle together with the baby dryad in a building and garden in Ur-Sagol.
2048 AU: Milly arrives in Felarya, and travels through a broad area. Roundabout this time, she stops ageing.
2051 AU: Milly settles in Tolmeshal, and begins to build her hut.
2053 AU: Roshan is hired by Alez Lahmit as Jissy's full-time carer.
2057 AU: Hlaani leaves her home and travels, eventually reaching Negav.
2057 AU: The Alsumi settle under Milly's hut, initially without permission. She soon discovers them, and welcomes their presence.
2059 AU: Tina spends a lot of time with Milly. They gradually become each other's closest friends.
2060 AU: Isham joins a theatre company on his native world.
2060 AU: Roundabout this time, Tina stops ageing.
2062 AU: Roundabout this time, Lucilya stops ageing.
2063 AU: Roundabout this time, Selima stops ageing.
2064 AU: Hlaani joins FOOD.
2065 AU: Vuni is swallowed by Katrika, and regurgitated a short while later.
2066 AU: Roshan brings Jissy back to Felarya.
2067 AU: Elia is swept into Felarya, and found by Jade.
2067 AU: Joanna is "harvested", sold as a snacka, and is brought accidentally to Felarya, where she's rescued by Milly.
2067 AU: Vuni and Tiasha give birth to nine baby slug girls. Vuni is swept away by a vanishing realm, then brought home by the same means.
2067 AU: Mieleti decides she's not cut out to be a demon of death, resigns, and applies rather optimistically for a job in Heaven.
2068 AU: Selima is eaten and digested by Jissy. Isham comes to Felarya and is caught by Milly. Jissy falls pregnant from Ajab. Jissy and Roshan are recaptured by Lahmit's men, and rescued by Ajab and by the fairy Enita. Isham moves to Safe Harbour and meets Elia. Hlaani accepts an invitation to stay at Milly's. Yemic arrives at Milly's. Vuni and Tiasha are attacked by tomthumbs; they flee their burrow with their babies, and find refuge with a dryad, Paem. Milly, Jissy, Roshan and Hlaani's encounter with Anko takes place. Jissy lays her eggs. Happy connects with the dryad network. Roshan meets Meszlaha, and is pressed by Ajab into moving to the nekos' village.
Whew! That took a while.