1) The push for racial and social justice has led to discussions and actions to address systemic racism, promote inclusivity, and challenge inequalities in various areas, including education, criminal justice, and economic opportunities.

2) The development of the microprocessor by Intel in 1971 paved the way for the modern computer and led to the exponential growth of computing power.

3) Ramen is a popular Japanese dish consisting of wheat noodles served in a flavorful broth, often topped with ingredients such as sliced pork, green onions, and soft-boiled eggs. It originated in China and was introduced to Japan in the late 19th century. Ramen has evolved into a culinary art form, with various regional styles and broth bases, ranging from soy sauce to miso and tonkotsu (pork bone). It is a beloved comfort food and has gained international recognition.

4) The world's largest volcano, Mauna Loa in Hawaii, is also one of the most active. It stands over 13,000 feet (4,000 meters) above sea level.