From the Hans Christian Andersen biography "The Life of Hans Christian Andersen. Day By Day", written by DPhil Johan de Mylius:
1871Journey through Sweden to Norway
The first four chapters of Lykke-Peer (Lucky Peter) are published in New York in Scribner's Monthly Magazine. The remaining are published in the next few months up until and including April.
27th - 28th January
28th March - 29th May
"La commune de Paris" (the revolutionary government in Paris).