When Does the Second Stageplay "The Age of Innocence" (2018) Take Place?

"The Age of Innocence" is a historical fiction romance stageplay written by CREATOR [adapting "The Age of Innocence" (1920) by Edith Wharton] that released September? 7th?, 2018. So when is "The Age of Innocence" set? 


It takes place in the year: 

187? AD 

We know this because .