sentences:  He forbade the sale or transportation of any of his slaves out of Virginia before their emancipation.Including the Dandridge slaves, who were to be emancipated under similar terms, more than 160 slaves would be freed.Although Washington was not alone among Virginian slaveowners in freeing their slaves, he was unusual among those doing it for doing it so late, after the post-revolutionary support for emancipation in Virginia had faded.