Pieced together by me, based on the text of the story.
Here be Spoilers:
1810-1815: (date approximate) a Gothic Revival stone church is built on Federal Hill, Providence, Rhode Island.
1844: May: Professor Enoch Bowen returns to Providence from his expedition in Egypt.
1844: July: Professor Bowen buys the old Free-Will church on Federal Hill.
1844: December 29: Dr. Drowne of Fourth Baptist warns against Starry Wisdom in sermon.
1845: 97 people in Starry Wisdom congregation by end of year.
1846: 3 disappearances & first mention of Shining Trapezohedron.
1848: 7 disappearances; stories of blood sacrifice begin.
1849: Francis X. Feeney joins Starry Wisdom.
1851: Photograph of Starry Wisdom church taken.
1853: Investigation of Starry Wisdom comes to nothing. Stories of sounds in the church begin. Death and confession of Francis X. Feeney to Father O’Malley?
1857: Story of Orrin B. Eddy.
1863: 200 or more laypeople in Starry Wisdom congregation.
1869: Irish boys mob Starry Wisdom church after disappearance of Patrick Regan.
1872: March 14: veiled article published in J (identification of newspaper mine).
1876: 6 disappearances. Secret committee calls on Mayor Doyle.
1877: February: “Action promised,” (by Mayor?)
1877: April: Starry Wisdom church closes.
1877: May: Federal Hill Boys (gang) threaten Dr. (Enoch Bowen?) and vestrymen.
1877: 181 persons leave Providence before the end of the year.
1880: (date approximate) Ghost stories about church begin.
1893: Edwin M. Lillibridge enters church, dies.
1935: late April: Robert Blake explores Federal Hill on foot, locates and enters church.
1935: June: Blake breaks the cypher.
1935: early July: Rumors from Federal Hill about new sounds from church published in local newspapers.
1935: July 16-17 (night): failure of streetlights on Federal Hill leads to panic among residents, claims of sounds, article in The Journal.
1935: July 17: 2 reporters from The Bulletin investigate the church during the day, publish article.
1935: July 30-31 (night): Blake sleepwalks, has nervous breakdown.
1935: August 8: the great storm strikes Providence, Rhode Island, just before midnight.
1935: August 9: 2:12 am: city-wide power failure.
1935: August 9: 2:35 am: Incident at the church; Robert Blake dies.