The Mayans were an ancient Mesoamerican civilization known for their advanced knowledge in astronomy, mathematics, and architecture. They developed a sophisticated calendar system and built impressive cities with intricate stone temples and pyramids. The Mayans also had a complex social structure, with a ruling class of priests and nobles overseeing a society that included farmers, artisans, and laborers. Despite their achievements, the Mayan civilization experienced a decline around 900 AD for reasons that are still debated among historians, including environmental degradation, warfare, and political instability. **

Yes, it is true that the Mayans were skilled astronomers and mathematicians. They developed a complex calendar system and made accurate astronomical observations. They also built impressive architectural structures, such as temples and pyramids, and had a sophisticated writing system. The Mayans were a highly advanced civilization with significant contributions to various fields of knowledge. **

The Mayans came first, with their civilization reaching its peak between 250 and 900 AD in present-day Mexico and Central America. The Aztecs came next, establishing their empire in the 14th century in present-day Mexico. The Incas came last, establishing their empire in the 15th century in present-day Peru. **

It is difficult to determine if something is a fashion trend without more specific information about what is being referred to. Fashion trends can vary widely and can be influenced by a variety of factors such as popular culture, social media, and celebrity endorsements. Without more context, it is challenging to definitively say whether something is a fashion trend or not. **

No, circumcision is not a fashion trend. Circumcision is a cultural, religious, or medical practice that has been performed for thousands of years in various societies around the world. It is not a passing trend, but rather a deeply rooted tradition with significant historical and cultural significance for many communities. While there may be fluctuations in circumcision rates over time, it is not accurate to categorize it as a fashion trend. **

Yes, piercings are considered a fashion trend. Over the years, piercings have become a popular way for people to express their individuality and personal style. From ear piercings to nose, lip, and body piercings, they have become a common form of self-expression and a way to enhance one's appearance. Many people view piercings as a fashion statement and use them to accessorize and complement their overall look. **

Yes, there were other advanced civilizations in the Americas when the Spaniards and Portuguese arrived. The Aztecs, Mayans, and Incas were not the only advanced societies in the region. There were also other civilizations such as the Olmecs, Toltecs, and Moche, who had developed complex societies, advanced agricultural techniques, and impressive architectural and artistic achievements. These civilizations had their own unique cultures, traditions, and political systems, and they made significant contributions to the history and development of the Americas. **

One weird fashion trend is "double jeans," which involves wearing two pairs of jeans at the same time. Another strange trend is "clear knee mom jeans," which are jeans with clear plastic panels at the knees. Additionally, "naked pants" are a bizarre trend where the pants are designed to look like the wearer is not wearing any pants at all. These trends push the boundaries of traditional fashion and often spark debate and discussion within the fashion community. **