Practice Important Dates & Events MCQ Questions 1–20 out of 20. Free quiz with answers and explanations for UPSC, SSC, Railway exam preparation. Never lose a single mark on factual timelines by using our Important Dates and Events timeline test. Memorize global environment days, national youth days, technology days, historical victory moments, and global health days tracked strictly across major standard competitive government exams.
National Science Day is celebrated in India on February 28 to commemorate which historic scientific event?
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Explanation
National Science Day is observed on February 28 to mark the discovery of the Raman Effect by Sir Chandrasekhara Venkata Raman in 1928, for which he won the Nobel Prize in Physics in 1930. [Memory Trick: 'Science' shines bright in 'Feb-Raman-y' (February) with the discovery of light scattering.]
2
Which of the following days is observed globally on April 22 to emphasize environmental preservation and ecological health?
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Explanation
Earth Day was first celebrated in 1970 to support environmental protection. It is observed every year on April 22. World Environment Day is on June 5, and World Water Day is on March 22. [Memory Trick: Double two of 'April' (4/22) matches the lush green 'Earth' core.]
3
In India, the National Youth Day is celebrated on January 12 to honor the birth anniversary of which spiritual leader?
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Explanation
The Government of India declared January 12 as National Youth Day in 1984, honoring Swami Vivekananda's progressive philosophy and call to mobilize the youth. [Memory Trick: At the start of the year (January '12'), global leader 'Vivekananda' commands youth energy.]
4
United Nations (UN) Day is celebrated annually on which of the following dates, marking the entry into force of the UN Charter in 1945?
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Explanation
UN Day is celebrated on October 24. Charter ratified on this day in 1945 by majority signatories, establishing the UN. [Memory Trick: UN is established in 'Oct-24' (Our Common Trust - 24 hours of Peace).]
5
Pravasi Bharatiya Divas (Non-Resident Indian Day) is celebrated in India on January 9 to commemorate which historic milestone of Mahatma Gandhi?
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Explanation
Pravasi Bharatiya Divas is celebrated on January 9 to mark Mahatma Gandhi's return from South Africa to Mumbai in 1915, leading India's struggle. [Memory Trick: Gandhi returned in January '09' (January Nine = Joined Native lands of India).]
6
Constitution Day (Samvidhan Divas) is observed in India on November 26. What does this date signify?
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Explanation
On November 26, 1949, the Constituent Assembly of India adopted the Constitution, which came into effect on January 26, 1950. [Memory Trick: We 'Adopted' in chilly 'November' (26th) and 'Enforced' it in winter 'January' (26th) to celebrate Republic Day.]
7
International Women's Day, celebrated annually on March 8, traces its early roots to:
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Explanation
International Women's Day emerged from labor movements in North America and across Europe in the early 20th century. March 8 was formalized after women gained suffrage in Soviet Russia in 1917. [Memory Trick: On March '08', we celebrate the 'infinite' (8 pivoted vertically) power of women.]
8
World Water Day is celebrated globally on March 22. What is the primary purpose of this international observance?
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Explanation
Observed since 1993, March 22 is World Water Day, highlighting the global water crisis and aligning with Sustainable Development Goal 6 (Water & Sanitation). [Memory Trick: 'March 22' can be remembered as '2 drops of Water' (22) in 'March' (Spring season).]
9
National Education Day is celebrated in India on November 11 to honor the birth anniversary of which visionary leader?
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Explanation
November 11 is observed as National Education Day, marking the birth anniversary of Maulana Abul Kalam Azad, the first Education Minister of independent India. [Memory Trick: First leader 'Azad' (Free) focused on making minds free through education on Nov 11 (Double 1s representing pen/pencils).]
10
The Kargil Vijay Diwas is celebrated in India on July 26 to commemorate which victorious accomplishment?
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Explanation
Kargil Vijay Diwas is celebrated on July 26, commemorating India's victory in the Kargil War of 1999 against Pakistani infiltrators under 'Operation Vijay'. [Memory Trick: High 'July' peaks (July 26) witnessed India's glorious 'Vijay' or victory.]
11
The National Sports Day is celebrated in India on August 29 to commemorate the birth anniversary of which iconic figure?
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Explanation
August 29 is celebrated as National Sports Day to honor the birth anniversary of the legendary Indian field hockey player, Major Dhyan Chand, who won gold medals in 1928, 1932, and 1936. [Memory Trick: 'August' (Respectable) 'Dhyan' (Focus/Attention) is required to master any 'Sport'.]
12
International Day of Yoga (IDY), proposed by India and approved by the UN General Assembly in 2014, is observed annually on which date?
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Explanation
June 21 is celebrated as International Day of Yoga since 2015. June 21 is the summer solstice in the Northern Hemisphere, featuring the longest day of the year. [Memory Trick: Longest daylight day 'June 21' means maximum energy for solar 'Pranayam' and Yoga.]
13
The National Voters' Day is celebrated in India on January 25 to mark the foundation day of which constitutional institution?
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Explanation
To encourage more young voters to join the electoral process, National Voters' Day has been celebrated since 2011 on January 25, the day ECI was founded in 1950. [Memory Trick: One day before Republic Day (Jan 26), the constitutional base of voting (Jan 25) was established.]
14
World Ozone Day is celebrated annually on September 16. What landmark international treaty does this date recall?
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Explanation
Sept 16 was proclaimed by the UN General Assembly as the International Day for the Preservation of the Ozone Layer, celebrating the signing of the Montreal Protocol on Sept 16, 1987. [Memory Trick: 'Sep-16' represents 'Shielding-Earth-Protection' (S-E-P) covering the 16 layers of safety.]
15
On which date is World Environment Day celebrated globally, commemorating the first day of the Stockholm Conference on the Human Environment in 1972?
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Explanation
The United Nations established World Environment Day on June 5 during the Stockholm Conference in 1972. It is celebrated globally since 1973 with specialized themes. [Memory Trick: When 'June' (Warm summer sun) begins, let us '5' (Give five fingers) to safeguard nature.]
16
National Panchayati Raj Day is observed annually on April 24 in India to mark which constitutional milestone?
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Explanation
April 24 marks the passing of the Constitutional (73rd Amendment) Act, 1992, which came into force in 1993, providing constitutional status to local rural self-government. [Memory Trick: Rural 'Panchayat' or 5-member units received statutory protection on April '24' (2+4 = nearly 5 village leaders working 24 hours).]
17
The National Engineers' Day is celebrated in India on September 15 to honor the legacy of which visionary builder?
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Explanation
September 15 is celebrated as Engineers' Day to mark the birth anniversary of civil engineering pioneer Sir Mokshagundam Visvesvaraya, who built historic dams and flood gates. [Memory Trick: 'M. V.' (Visvesvaraya) designed massive irrigation channels in 'September 15' to secure crops.]
18
The National Civil Services Day is celebrated in India on April 21 because on this key date in 1947, Sardar Vallabhbhai Patel addressed:
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Explanation
Sardar Patel addressed the first batch of IAS officers on April 21, 1947, famously calling civil servants the 'steel frame of India'. [Memory Trick: 'Steel Frame' (S-F) is forged on April '21' to keep administrative structures upright.]
19
World Red Cross Day and Red Crescent Day is observed annually on May 8 to celebrate the birth anniversary of whom?
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Explanation
Born on May 8, 1828, Jean Henry Dunant was the visionary creator of the International Committee of the Red Cross and shared the first-ever Nobel Peace Prize in 1901. [Memory Trick: In 'May' (Month of humanitarian service), '8' (representing the Red Cross cross symbol) honors Henry Dunant.]
20
World Food Day, organized annually on October 16, marks the founding anniversary of which leading UN specialized agency?
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Explanation
World Food Day is celebrated on October 16 to mark the establishment of the Food and Agriculture Organization (FAO) of the United Nations in Quebec city, Canada in 1945. [Memory Trick: We eat clean 'Food' on 'Oct-16' (O-16) representing physical nutrition for health.]