08:51:1808:51:181. In 1492: Granada, the last stronghold of the Moorish regime in Spain, was recaptured. This ended the Moorish rule that had lasted for more than 700 years on the Iberian Peninsula and marked the completion of the unification of Spain, laying the foundation for Spain's rise and overseas expansion.

2. In 1783: The second copy of the "Complete Library of the Four Treasuries" in China was completed.

3. In 1861: Prince Wilhelm ascended the throne as Wilhelm I of Prussia. During his reign, the military strength of the Kingdom of Prussia was significantly enhanced, laying the foundation for the subsequent unification of Germany.

4. In 1871: The newspaper "La Commune" of the Paris Commune in France began to be published. It played an important role in promoting the ideas, policies and propositions of the Paris Commune. It was an important bridge between the Commune and the masses and had a positive impact on consolidating the Commune's regime and uniting the masses.

5. In 1905: The Russian troops stationed in Port Arthur surrendered to the Japanese during the Russo-Japanese War. The victory of this battle had a profound impact on the course of the Russo-Japanese War and also demonstrated the powerful military might of the Japanese army.

6. In 1909: An earthquake occurred in southern Italy, killing more than 200,000 people. It was one of the most severe natural disasters in Italian history, bringing great catastrophe to the local people.

7. In 1920: The Prohibition in the United States came into effect, banning the brewing, transportation and sale of alcoholic beverages. This policy had a profound impact on American society, economy and culture, leading to the rampant illegal production and smuggling of liquor, as well as some criminal organizations and social problems related to Prohibition.

8. In 1934: The assassination of Sergei Mironovich Kirov occurred in the Soviet Union. Kirov was assassinated at the Smolny Institute in Leningrad. This incident triggered a political purge in the Soviet Union and had a profound impact on the political, social and historical development of the Soviet Union.

9. In 1955: China established diplomatic relations with Yugoslavia. After the establishment of diplomatic ties, the two countries carried out extensive exchanges and cooperation in politics, economy, culture and other fields, bringing tangible benefits to the people of both countries.

10. In 1959: The world's first lunar probe, "Luna 1", flew past the moon and entered a solar orbit. This marked the beginning of a new era in human lunar exploration, inspired the global enthusiasm for space exploration, and demonstrated the leading position of the Soviet Union in the aerospace field.

11. In 1971: The United Kingdom announced the severance of diplomatic relations with Iceland. This severance was due to the intensification of disputes over cod fishing between the two countries. This event had a significant impact on the economic and diplomatic relations of the two countries and also attracted widespread attention from the international community.