Question: When did the ottoman empire take over greece?

context: After the fall of Constantinople to the Ottomans in 1453, the Despotate of the Morea was the last remnant of the Byzantine Empire to hold out against the Ottomans. However, it fell to the Ottomans in 1460, completing the conquest of mainland Greece.
question: When did the ottoman empire take over all of mainland greece, not including the Despotate of the Morea?
short_answers: 1453
context: After the fall of Constantinople to the Ottomans in 1453, the Despotate of the Morea was the last remnant of the Byzantine Empire to hold out against the Ottomans. However, it fell to the Ottomans in 1460, completing the conquest of mainland Greece.
question: When did the ottoman empire take over all of mainland greece, including the Despotate of the Morea?
short_answers: 1460
context: No context provided
question: When did the ottoman empire take over all of greece?
short_answers: 1670
context: With no further threat by the Serbs and the subsequent Byzantine civil wars, the Ottomans besieged and took Constantinople in 1453 and then advanced southwards into Greece, capturing Athens in 1458. The Greeks held out in the Peloponnese until 1460, and the Venetians and Genoese clung to some of the islands, but by the early 16th century all of mainland Greece and most of the Aegean islands were in Ottoman hands, excluding several port cities still held by the Venetians (Nafplio, Monemvasia, Parga and Methone the most important of them). The mountains of Greece were largely untouched, and were a refuge for Greeks who desired to flee Ottoman rule and engage in guerrilla warfare.
question: When did the ottoman empire take over Athens, greece?
short_answers: 1458
context: After the fall of Constantinople to the Ottomans in 1453, the Despotate of the Morea was the last remnant of the Byzantine Empire to hold out against the Ottomans. However, it fell to the Ottomans in 1460, completing the conquest of mainland Greece.
question: When did the ottoman empire complete their take over of mainland greece?
short_answers: 1460
context: While most of mainland Greece and the Aegean islands was under Ottoman control by the end of the 15th century, Cyprus and Crete remained Venetian territory and did not fall to the Ottomans until 1571 and 1670 respectively. The only part of the Greek-speaking world that escaped Ottoman rule was the Ionian Islands, which remained Venetian until 1797. Corfu withstood three major sieges in 1537, 1571 and 1716 all of which resulted in the repulsion of the Ottomans.
question: When did the ottoman empire complete their take over of greece except for the Ionian Islands?
short_answers: 1670

long_answer: After the fall of Constantinople to the Ottomans in 1453, the Ottoman Empire took over all of mainland Greece except for the Despotate of the Morea. However, it later fell to the Ottomans in 1460. The Ottoman empire also captured Athens, Greece in 1458.  The Ottoman Empire completed their takeover of Greece excluding the Ionian Islands in 1670. 
long_answer: Different parts of Greece were taken by the Ottoman Empire at different times, with some being untaken by the Ottomans. In 1453, the Ottoman Empire took over all of mainland Greece except for the Despotate of the Morea, which fell to the Ottomans in 1460, completing the takeover of mainland Greece. In 1458, the Ottomans took over Athens, the capital and largest city of Greece. In 1670, the Ottoman Empire completed its takeover of Greece except for the Ionian Islands, the only part of the Greek-speaking world that escaped Ottoman rule, which remained Venetian until 1797.