Sentence:  The residents skirting the line of the Harlem Railroad as far as Croton Falls, were not a little annoyed, last Sunday, by numerous cheap excursion trains. . . . [W]e doubt whether the law gave being to a great corporation for the purpose of tempting men from their homes on the <WSD>Day of days</WSD>. 
Meaning of the word marked with <WSD> tags:  Sunday, especially Easter Sunday.