Polonaise 15th century. In later centuries it gained popularity among the nobility and townspeople. Polonaise in French Courts The polonaise or "polonez", was first introduced in the 17th century in French courts, although the form originated in Poland and was very popular throughout Europe. This dance in 3/4 meter was designed to entertain the French royal court. The term polonaise was used over the term "polonez" at the start of the 18th century. Princess Anna Maria of Saxony Princess Anna Maria of Saxony collected polonaises throughout her life time, collecting over 350. Her collection was focused on the finest examples of
Types of volcanic eruptions Types of volcanic eruptions Several types of volcanic eruptions—during which lava, tephra (ash, lapilli, volcanic bombs and volcanic blocks), and assorted gases are expelled from a volcanic vent or fissure—have been distinguished by volcanologists. These are often named after famous volcanoes where that type of behavior has been observed. Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series. There are three different types of eruptions. The most well-observed are magmatic eruptions, which involve the decompression of gas within magma that