When was slavery finally abolished in French colonies?

Explanation

The French Republic abolished slavery in 1794, but Napoleon reversed the order in 1802.

The slave trade was outlawed by the Republic in 1815, but the edict did not take effect until 1826.

Slavery was abolished in France's colonies once again in 1848, with a broad and unconditional liberation.

Slavery was eventually abolished in 1848. Slave labourers were heavily exploited in order to keep the revenues from the trade.

Final Answer

In 1848, slavery finally abolished in French colonies.