Book Battles of Bulgaria against the Ottoman Empire

The Bulgarian kingdom in the 14th century was as big as the state that Emir Osman created in Asia Minor. For a century (1354-1453) it became a powerful empire. For these hundred years the Bulgarians - alone or with European allies who fought heroic battles for their freedom. And when they were conquered, our ancestors did not resign. The great hardships they fulfilled the miracle of their Renaissance. It ended with the restoration of the Bulgarian state (1878), which during the Balkan War freed all enslaved territories.