The fall of Constantinople in 1453 marked the end of which empire?

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The fall of Constantinople in 1453 marked the end of which empire?
What is the value of x in the equation 3x + 5 = 17?
What holiday marks the resurrection of Jesus?
Which civilization is known for building Machu Picchu?
Approximately, how many years ago did the Big Bang occur?
Which word is similar to daze?
Which word is similar to rapt?