Switzerland is best recognized as a country of many cultural influences, a country with both a stable economy and government and a country of polyglot people. Although the predominant language is German, many of the Swiss speak French and Italian in addition to German. There is a nearly equal percentage of Roman Catholics as there are Protestants (48% and 49% respectively). The origins of the Swiss can be traced to the inhabitation of the Helvetians. Later, the Roman Empire conquered the territory now known as modern Switzerland, and the Helvetians enjoyed and achieved a higher level of civilization. In 800 A.D., Switzerland came under the rule of Charlemagne. However, the rule of the country was subsequently divided among German emperors. After the Swiss defeat of the Hapsburgs and successive victories throughout the Middle Ages, the Swiss army gained renown for their excellent fighting abilities and Switzerland was unified by this strength. In the 1800s, the Swiss adopted a constitution which was amended in 1874 and is the foundation for Switzerland's current political system. Today, the country of Switzerland is a federal state composed of 26 cantons. The 3 branches of Swiss government include: the Federal Assembly, composed of a bicameral legislature, the Federal Council and the Federal Tribunal, a judiciary composed of a single, regular court. The Swiss work force is predominantly divided between industry and services. The Swiss have established a high literacy rate and a low rate of infant mortality.