The Gospel of John records more visits to Jerusalem by Jesus than any other of the Gospels. John is the only one to record the visit during the Feast of Dedication.
At that time the Feast of Dedication took place at Jerusalem. It was winter, and Jesus was walking in the temple, in the colonnade of Solomon. (John 10:22-23 ESV)
BDAG translates the Greek term egkainia as “festival of rededication.” The feast is also known as Hanukkah and the Feast of Lights.
What is the Feast of Dedication? This feast, observed on the 25th of Kislev (roughly our December), had its origin in the period between the testaments. The desecration of the temple by the Seleucid ruler Antiochus Epiphanes took place in 168 B.C. The climax of the Maccabean revolt was the removal of all evidences of pagan worship from the temple. An eight-day feast of dedication was observed in 165 B.C., and continued to be observed annually by the Jews.
At Modin, a village north-west of Jerusalem, on the way from Jerusalem to Lod, the Syrians tried to force an old priest by the name of Mattathias to offer a pagan sacrifice. The priest refused but another Jew volunteered to offer the sacrifice. Mattathias killed his fellow Jew and the Syrian officer. As word spread, Mattathias became a national hero. He was of the family of Hasmon (or Asmoneus). Thus began the Hasmoneans.
Archaeologists working with the Israel Antiquities Authority have been searching for the tomb of the Maccabeans at Modin in recent years. See the report here.