Frederick II got Jerusalem back by speaking Arabic with the Sultan over dinner.

1229 Event

Frederick II Signs Crusade Peace Treaty: Jerusalem Without a Battle

Frederick II got Jerusalem back by speaking Arabic with the Sultan over dinner. No battle. No papal blessing — the Pope had excommunicated him. Al-Kamil and Frederick exchanged philosophy texts and geometry problems. They signed a ten-year truce in 1229. Christians got Jerusalem, Nazareth, Bethlehem. Muslims kept the Dome of the Rock. Both sides were furious. The Pope called it blasphemy. Islamic scholars called al-Kamil a traitor. It worked anyway. For exactly ten years.

Talk About This Event

February 18, 1229

797 years ago

What Else Happened on February 18

3102 BC Event

The Hindu calendar marks this as the moment Krishna left Earth. Kali Yuga — the age of darkness and discord — began at midnight between February 17 and 18, 3102…

3102 BC Event

The Kali Yuga began as the era of spiritual decline following the departure of Krishna from the earthly realm. This transition into the final age of the Hindu c…

1126 Event

Im Erbstreit um das Herzogtum Böhmen findet die Zweite Schlacht bei Chlumec statt. Der Přemyslide Soběslav I. siegt dabei über seinen Kontrahenten Otto II. von …

1145 Event

consécration du pape Eugène III.

1162 Event

Amaury Ier est couronné roi de Jérusalem après avoir répudié Agnès de Courtenay.

1268 Event

Dovmont of Pskov routed the combined forces of the Livonian Order and Danish Estonia on the frozen Rakvere River. This decisive victory halted the Order’s eastw…

View all events on February 18 →

Talk to History

Have a conversation with historical figures who witnessed this era. Ask questions, explore perspectives, and bring history to life.

Start Talking

← Back to February 18

Frederick II Signs Crusade Peace Treaty: Jerusalem Without a Battle

Key Figures & Places

What Else Happened on February 18

Talk to History