Significant Dates

1925 other galaxies recognized
1926 birth of Poul Anderson
1929 cosmic expansion discovered
1938 Superman published
1947 "Tomorrow's Children" by Poul Anderson and F.N. Waldrop
1947 "Chain of Logic" by Poul Anderson
1949 my birth
1951 "Tiger By The Tail" by Poul Anderson
1951 "Honorable Enemies" by Poul Anderson
1951 "Sargasso of Lost Starships" by Poul Anderson
1952 Vault Of The Ages by Poul Anderson
1952 "The Star Plunderer" by Poul Anderson
1953 Three Hearts And Three Lions by Poul Anderson
1954 Brain Wave by Poul Anderson
1954 The Broken Sword by Poul Anderson
1954 "Ghetto" by Poul Anderson
1954 "The Warriors from Nowhere" by Poul Anderson
1954 Question And Answer by Poul Anderson
1954 "The Sensitive Man" by Poul Anderson
1955 "Time Patrol" by Poul Anderson
1955 "Delenda Est" by Poul Anderson
1955 No World Of Their Own by Poul Anderson
1956 "Margin of Profit" by Poul Anderson
1956 Star Ways by Poul Anderson
1957 Earthman's Burden by Poul Anderson and Gordon R. Dickson
1957 "Memory" by Poul Anderson
1957 "Brake" by Poul Anderson
1958 The Snows Of Ganymede by Poul Anderson
1958 "The Man Who Counts" by Poul Anderson
1958 War Of The Wing-Men by Poul Anderson
1958 "The Game of Glory" by Poul Anderson
1959 Virgin Planet by Poul Anderson
1959 "Brave To Be A King" by Poul Anderson
1959 "The Sky People" by Poul Anderson
1959 "Hunters of the Sky Cave" by Poul Anderson
1959 "A Message in Secret" by Poul Anderson
1959 The Enemy Stars by Poul Anderson
1959 Perish By The Sword by Poul Anderson
1959 The War Of Two Worlds by Poul Anderson
1960 "The Only Game In Town" by Poul Anderson
1960 Guardians Of Time by Poul Anderson
1960 "The Plague of Masters" by Poul Anderson
1960 "A Twelvemonth And A Day" by Poul Anderson
1960 The High Crusade by Poul Anderson
1960 Murder In Black Letter by Poul Anderson
1960 The Golden Slave by Poul Anderson
1960 Rogue Sword by Poul Anderson
1961 "Progress" by Poul Anderson
1961 "Children of Fortune" by Poul Anderson
1961 "Epilogue" by Poul Anderson
1961 Twilight World by Poul Anderson
1961 Strangers From Earth by Poul Anderson
1961 Orbit Unlimited by Poul Anderson
1961 "Hiding Place" by Poul Anderson
1962 Un-Man And Other Novellas by Poul Anderson
1962 After Doomsday by Poul Anderson
1962 The Makeshift Rocket by Poul Anderson
1962 Murder Bound by Poul Anderson
1963 "Territory" by Poul Anderson
1963 Shield by Poul Anderson
1963 Is There Life On Other Worlds? by Poul Anderson
1964 Three Worlds To Conquer by Poul Anderson
1965 The Corridors Of Time by Poul Anderson
1965 The Star Fox by Poul Anderson
1963 Let The Spacemen Beware by Poul Anderson
1963 "The Three-Cornered Wheel" by Poul Anderson
1963 "Homo Aquaticus" by Poul Anderson
1964 "The Master Key" by Poul Anderson
1964 Three Worlds To Conquer by Poul Anderson
1965 "Trader Team" by Poul Anderson
1965 The Corridors Of Time by Poul Anderson
1966 Ensign Flandry by Poul Anderson
1966 "A Sun Invisible" by Poul Anderson
1966 "Plus Ca Change, Plus C'est Le Meme Chose" by Poul Anderson
1966 "Home" by Poul Anderson
1966 "The Moonrakers" by Poul Anderson
1966 The Fox, The Dog And The Griffin by Poul Anderson
1967 "Outpost of Empire" by Poul Anderson
1967 "Starfog" by Poul Anderson
1967 "Day of Burning" by Poul Anderson
1967 "A Tragedy of Errors" by Poul Anderson
1967 World Without Stars by Poul Anderson
1967 "To Outlive Eternity" by Poul Anderson
1968 "The Sharing of Flesh" by Poul Anderson
1969 The Rebel Worlds by Poul Anderson
1969 The Infinite Voyage by Poul Anderson
1969 Seven Conquests by Poul Anderson
1970 Tales Of The Flying Mountains by Poul Anderson
1970 "Esau" by Poul Anderson
1970 A Circus Of Hells by Poul Anderson
1970 Tau Zero by Poul Anderson
1971 "A Little Knowledge" by Poul Anderson
1971 "The Queen Of Air And Darkness" by Poul Anderson
1971 The Byworlder by Poul Anderson
1971 Operation Chaos by Poul Anderson
1971 The Broken Sword revised
1972 The Dancer From Atlantis by Poul Anderson
1972 "Wings of Victory" by Poul Anderson
1972 The Day The Sun Stood Still by Poul Anderson, Gordon R. Dickson and Robert Silverberg
1973 There Will Be Time by Poul Anderson
1973 "The Season of Forgiveness" by Poul Anderson
1973 "Wingless" by Poul Anderson
1973 The People Of The Wind by Poul Anderson
1973 "The Problem of Pain" by Poul Anderson
1973 "Rescue on Avalon" by Poul Anderson
1973 "Lodestar" by Poul Anderson
1973 The Day Of Their Return by Poul Anderson
1973 "Windmill" by Poul Anderson
1973 Hrolf Kraki's Saga by Poul Anderson
1974 "How To Be Ethnic In One Easy Lesson" by Poul Anderson
1974 A Knight Of Ghosts And Shadows by Poul Anderson
1974 "My Own, My Native Land" by Poul Anderson
1974 "Passing The Love Of Women" by Poul Anderson
1974 "A Fair Exchange" by Poul Anderson
1974 Fire Time by Poul Anderson
1974 A Midsummer Tempest by Poul Anderson
1974 The Many Worlds Of Poul Anderson, ed. Roger Elwood
1975 "To Promote The General Welfare" by Poul Anderson
1975 The Winter Of The World by Poul Anderson
1975 Homeward And Beyond by Poul Anderson
1975 Star Prince Charlie by Poul Anderson and Gordon R. Dickson
1976 The Best Of Poul Anderson
1977 A World Named Cleopatra
1978 The Avatar by Poul Anderson
1979 The Merman's Children by Poul Anderson
1979 The Demon Of Scattery by Poul Anderson and Mildred Downey Broxon
1979 A Stone In Heaven by Poul Anderson
1980 Conan The Rebel by Poul Anderson
1980 The Devil's Game by Poul Anderson
1980 The Golden Horn by Poul Anderson
1980 The Road of the Sea Horse by Poul Anderson
1980 The Sign Of The Raven by Poul Anderson
1981 Fantasy by Poul Anderson
1981 Explorations by Poul Anderson
1981 The Dark Between The Stars by Poul Anderson
1981 The Psychotechnic League by Poul Anderson
1981 "The Saturn Game" by Poul Anderson
1982 Cold Victory by Poul Anderson
1982 Starship by Poul Anderson
1982 New America by Poul Anderson
1982 The Gods Laughed by Poul Anderson
1983 Conflict by Poul Anderson
1983 "Ivory, And Apes, And Peacocks" by Poul Anderson
1983 "The Sorrow of Odin the Goth" by Poul Anderson
1983 Hoka! by Poul Anderson and Gordon R. Dickson
1983 Orion Shall Rise by Poul Anderson
1984 Past Times by Poul Anderson
1984 The Unicorn Trade by Poul and Karen Anderson
1985 Dialogue With Darkness by Poul Anderson
1985 The Game Of Empire by Poul Anderson
1985 "Pride" by Poul Anderson
1986 Roma Mater by Poul and Karen Anderson
1987 Gallicenae by Poul and Karen Anderson
1987 Dahut by Poul and Karen Anderson
1988 The Dog And The Wolf by Poul and Karen Anderson
1988 The Year Of The Ransom by Poul Anderson
1989 The Boat Of A Million Years by Poul Anderson
1990 The Shield Of Time by Poul Anderson
1991 "Star of the Sea" by Poul Anderson
1991 "Inconstant Star" by Poul Anderson
1991 The Time Patrol by Poul Anderson

Stop! This is not a complete list and was never intended to be such a long list. I have stopped temporarily only because I am not, at this time of night, finding any title that was published in 1992. The list so far shows:

(i) the dates of two important discoveries that underlie all subsequent sf;

(ii) the date of Superman who started as sf although he initiated a new genre (his alien menagerie is comparable to the one in Anderson's "Hiding Place" (1961));

(iii) for comparison, the year of my birth (blog readers can add theirs);

(iv) an unbroken record of Poul Anderson publications from 1951 until 1991 - and there was more after that.