May First celebrates Spring, but this pagan celebration using 
   May-poles (from a religion that focuses upon trees) and happy 
   dancing in costumes, no longer existed in Dickens' England 
   except in an attenuated form. Chimney-sweeps still celebrated 
   Spring! A Chimney-sweep dressed as a "Jack-in-the-Green" 
   or "Jack o' the Green": covered with green leaves and 
   branches: a veritable tree-spirit! A Chimney-sweep dressed as 
   a "Man of Green" went in a procession through London 
   streets, accompanied by others who danced and were dressed in 
   costumes.