Great, I been reworking the timeline. Let me know if I missed anything.
1690 - The Village of Fowl Devotees is founded
1776 - The City is founded
1843 - Prufrock Preparatory School is founded
1896 - Charles "Chas" Snicket is born
1898 - Ishmael is born
1914 - WWI starts
1918 - WWI ends
1920 - Jacob and E Snicket are born
1926 - Hal is born
1930 - Mrs Bass and Mr Remora are born
1932 - Justice Gorgon and Justice Quisling are born
1933 - Gregor Anwhistle is born
1935 - Josephine and Isaac "Ike" Anwhistle are born
1939 - WII starts
1941 - The Bald Man with The Long Nose is born
1942 - Sir is born, Nero Feint is born
1943 - Monty Montgomery is born, Gustav Sebald is born
1944 - Sally Sebald is born, Kevin is born
1945 - WII ends
1946 - Count Olaf is born
1947 - Justice Strauss is born, Babs is born
1948 - Bass and Remora start teaching at Prufrock Prep, Georgina Orwell is born, Eleanora Poe is born
1949 - Colette is born
1950 - Frank, Ernest and Dewey Denouement are born, Esme Squalor is born
Jan 12, 1951 - Jacques and Kit Snicket are born
1951 - Jerome Squalor is born, Arthur Poe and Polly Poe are born
1952 - Bertrand Baudelaire, Beatrice Baudelaire and Duchess R are born, Captain Widdershins is born
1953 - Lemony Snicket is born, Hector is born
1954 - Gorgon and Quisling defect from VFD, The White Faced Women are born, Geraldine Julienne is born
1955 - The Schism starts, Anwhistle Aquatics is founded
1956 - Phil is born, Hugo is born, The Henchperson of Indeterminate Gender is born
1958 - Miranda Caliban and Thursday are born, Charles is born, Olaf attends Wade Academy
1960 - Olivia Caliban is born
1961 - Beatrice catches her first bat, Jacques learns how fast wasps can get angry and Lemony learns that when an animal is cornered it will lash out
1962 - Fernald (The Hook Handed Man) is born
1963 - Lemony and Beatrice formally meet
1964 - lemony leads a semi-coup with the children volunteers
1965 - ATWQ takes place
1966 - THOTS takes place
1968 - Hotel Denouement is opened
1970 - Olaf's parents are murdered by Beatrice, Bertrand and Lemony along with Kit
1971 - Lemony, Jacques, R and Geraldine start working at the Daily Punctilio
1975 - Lemony, Beatrice, R and Jerome hike up Mortmain Mountains, Olaf gives Esme acting lessons
1976 - R becomes duchess of Winnipeg, Lemony proposes to Beatrice, Beatrice spies on Olaf's troupe, Lemony is fired for giving a bad play, Jerome buys 667 Dark Avenue
1977 - Lemony is framed for Olaf's arson, Beatrice writes My Silence Knot
1979 - Beatrice marries Bertrand
1980 - Fiona is born, Beatrice and Bertrand colonise an Island before being banished by Ishmael and his followers
1981 - Violet Baudelaire is born Josephine and Ike marry
1982 - Isadora, Duncan and Quigley Quagmire are born, Ike is devoured by leeches
1983 - Klaus Baudelaire is born, Carmelita Spats is born (sometime after Klaus), Anwhistle Aquatics burns down, Fernald is framed for this by Jacques
1984 - Esme and Jerome marry
1987 - Thursday leaves the Island, Arthur and Polly marry
1988 - Friday Caliban is born, Edgar Poe is born
1990 - Albert Poe is born
1993 - Sunny Baudelaire is born
1995 - ASOUE takes place (TBB, TRR, TWW, TMM, TAA, TEE)
1996 - (TVV, THH, TCC, TSS, TGG, TPP & TEE), Beatrice Baudelaire II is born
1997 - The Baudelaires leave the Island
1999 - Lemony publishes the Bad Beginning
2006 - Beatrice II meets her uncle Lemony
I think it would be good to indicate which events are based on canonical evidence, which headcanon events, and which dates are hypothetical approximations.Furthermore, lately I defend the idea that the publication of TE happened after the meeting with Beatrice Jr, and for that reason chapter 14 could be written with the information given by Beatrice Jr.