Baldomero Espartero becomes Prime Minister of Spain, having already
held the position of Regent from 1840 to 1843.
Citation:
Editors. "Espartero becomes premier of Spain".
The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=18304, accessed 23 May 2013.]