[Terpfen]

Not really. The Roman Empire was, what, about 700 years? Then you toss in another thousand thanks to Byzantium, maybe a few hundred more if you believe the Holy Roman Empire was actually a continuance of the classical Roman Empire, and you've got probably the longest-surviving empire in human history... China excepted.

[muawiyah]

Venice had the longest lived continuous government in human history.

[muawiyah]

Almost forgot, there was the Roman "kingdom", then the Roman "republic", then a series of "empires" ~ then split into the Eastern and Western Empire, and various other things.

Rome changed governmental systems, capital cities, and physical locations over a long period ~ so you can count it as being a very long lived "country" or a series of successor states with a relatively common language, similar public laws, and Roman noses.