Complex sentence: On 4 December 1803, the French colonial army of Napoleon Bonaparte surrendered its last remaining territory to Dessalines' forces, officially ending the only slave rebellion in world history which successfully resulted in establishing an independent nation.
Split into simpler sentences: On 4 December 1803, the French colonial army of Napoleon Bonaparte surrendered its last remaining territory to Dessalines' forces. This officially ended the only slave rebellion in world history which successfully resulted in establishing an independent nation.