December 15, 1866.
Trieste, the most important port of the Austrian Empire.
Ever since the end of the Prussia and Austria war, Austria handed over Venice to Italy through France, making Trieste automatically become the only most important port of the soon-to-be-born Austria-Hungary Empire (February 1867).
Currently, the Austrian government is negotiating with Hungarian Magyar nobles, and both sides are fiercely debating rights and obligations.
By February of the following year, a compromise was reached, granting Hungarian Magyar nobles equal rights as Austria, but the Magyars must ensure that Hungary remains within the Empire, thus forming the dual monarchy.
Trieste is the shipbuilding center and commercial maritime trade hub of the Austria-Hungary Empire.
Once engaged in a two-century-long war with Venice, the locals later actively sought protection from the Habsburg and were incorporated into the Austrian Empire, remaining as core territories of Austria ever since.
