hereupon

Laſtly, One way more there may be of miſtake, at that not unuſuall among us, grounded upon a double compute of the year; the one beginning from the 25 of March, the other from the day of our birth unto the ſame again, which is the naturall account. Now hereupon many men frequently miſcaſt their daies; for in their age they diduce the account not from the day of their birth, but the year of our Lord, wherein they were born.

1650, Thomas Browne, “Of the Great Climactericall Year, that is, Sixty Three”, in Pseudodoxia Epidemica: […], 2nd edition, London: […] A[braham] Miller, for Edw[ard] Dod and Nath[aniel] Ekins, […], →OCLC, 4th book, page 187

Again, be it that some nocive or hurtful thing be towards us, must Fear of necessity follow hereupon?

[1594], Richard Hooker, edited by J[ohn] S[penser], Of the Lawes of Ecclesiastical Politie, […], London: […] Iohn Windet, […], →OCLC, (please specify the page)

Hereupon it fell out, after the expiring of a scantling of weeks, that Master Carvel became as jealous as a tiger, and entered into a very profound suspicion that his new-married gixy did keep a-buttock-stirring with others.

1693, François Rabelais, Gargantua and Pantagruel (translated)