Final answer:
The year 1918 marked the beginning of a new world as it marked the end of World War I and brought about significant changes globally.
Step-by-step explanation:
The year 1918 marked the beginning of a new world as it marked the end of World War I and brought about significant changes globally.
The war resulted in the collapse of the old order of monarchy and nobility, leading to the establishment of new political systems and ideologies. It also triggered revolutions, nationalist movements, and the growth of communism in Russia.
Additionally, the war set the stage for future conflicts and geopolitical shifts, ultimately shaping the course of the 20th century.