Austrian forces cross the Sardinian frontier, initiating the Second
Austro-Sardinian War, which ultimately led to Italian independence
and unification.
Citation:
Editors. "Austrian forces cross Sardinian frontier".
The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=18368, accessed 20 June 2013.]