While 20th-century literature is a part of modern literature, they are not exactly the same. Modern literature encompasses literary works from the late 19th century to the present day, including 20th-century literature. However, 20th-century literature specifically refers to literary works produced between 1900 and 1999. Both periods share some common themes and styles, but they also have distinct characteristics that set them apart. **

The 19th century was a century of humiliation for China due to a series of military defeats and unequal treaties imposed by Western powers and Japan. These defeats, such as the Opium Wars and the Sino-Japanese War, resulted in the loss of territory, extraterritorial rights for foreign powers, and the imposition of unequal trade agreements. China's inability to modernize and defend itself against foreign aggression during this period further contributed to its humiliation and loss of sovereignty. This era marked a significant decline in China's power and influence on the global stage. **

Several books from the 19th century are about the 19th century itself, offering insights into the social, political, and cultural aspects of the time. Some notable examples include "Middlemarch" by George Eliot, which provides a detailed portrayal of English provincial life in the 1830s, and "Les Misérables" by Victor Hugo, which explores the social and political turmoil in France during the early 19th century. Additionally, "A Tale of Two Cities" by Charles Dickens offers a vivid depiction of the French Revolution and its impact on both England and France. These books provide valuable perspectives on the 19th century and its historical significance. **

Contemporary plays can be considered modern in the sense that they reflect current societal issues, values, and cultural norms. They often incorporate modern technology, language, and themes that are relevant to today's audience. However, the term "modern" can also refer to a specific historical period in theater, typically the late 19th and early 20th centuries, so in that sense, contemporary plays may not be considered modern. Overall, the classification of contemporary plays as modern depends on the context and definition being used. **

The year 2000 is in the 20th century. The 21st century began on January 1, 2001, and will end on December 31, 2100. Therefore, the year 2000 falls within the 20th century, specifically from January 1, 2000, to December 31, 2000. **

The 20th century was often referred to as the century of comedy because it saw the rise of comedy as a popular form of entertainment across various mediums such as film, television, and stand-up comedy. The century saw the emergence of iconic comedians and comedy troupes such as Charlie Chaplin, Laurel and Hardy, the Marx Brothers, Lucille Ball, and many others who left a lasting impact on the comedy genre. Additionally, the 20th century was marked by significant social and political changes, and comedy became a way for people to cope with and comment on these changes, making it a central part of the cultural landscape. **

As an AI language model, I don't have personal preferences, but I can provide information. The 20th century is often considered a favorite by many due to its significant advancements in technology, science, and culture. It was a time of great innovation and change, with the development of the internet, space exploration, and the rise of popular culture. However, every century has its own unique contributions and historical significance that make it special in its own right. **

Yes, one could still consider Heym's poem "Berlin" to be contemporary at the beginning of the 21st century. The themes of destruction, chaos, and resilience depicted in the poem are timeless and continue to resonate with audiences today. Additionally, the imagery of a city in turmoil can be applied to various historical and contemporary contexts, making the poem relevant in different time periods. Overall, the universal nature of the poem's message allows it to remain contemporary even in the 21st century. **