Do you know this quote from the constitution of Serbia in 1835?

Question

As a slave enters the Serbian land, he becomes free from that moment, or whoever brought him to Serbia, or fled to it himself. A Serb is free to buy goods, but not to sell them.

Answer 1

No, can't say as I have.

Answer 2

Oh it sounds like a marvelous constitution, Kninjanin! Do you happen to know when the Serbian Constitution was ratified? Oh, I just looked, and you mention the date 1835.

The reason I ask, of course, is that the USA had no such provision in its constitution...fought a Civil War over slavery 1860-65.

Answer 3

It was ratified in 1835.