They came back from the exile in Babylon. The times were hard. All enthusiasm got lost on the way. Everyone was running for his own business. And then two prophets stood up. One of them was Zechariah. And the miracle happened. After the Seventy Years of Judgement Jeremiah had spoken of  indeed a new time began. The Temple of God was rebuilt.
But Zechariah's visions went far beyond his own time. About 500 years later Jesus of Nazareth would take Zechariah's prophecies as an encouragement to enter Jerusalem and meet his fate. Here you have an outline of this remarkable prophet.