Landmark events are significant occurrences that have a lasting impact on society, culture, or history. These events can include major political changes, scientific breakthroughs, or cultural milestones. For example, the signing of the Declaration of Independence in 1776 marked the birth of the United States, while the moon landing in 1969 represented a monumental achievement in space exploration. Such events often serve as turning points, shaping the future and influencing public opinion. They can inspire movements, lead to reforms, or change the course of nations. Landmark events are remembered and studied for their importance in understanding the past and its effects on the present.