Explanation

World Maritime Day is celebrated on last Thursday of September. 

In 2022, it was celebrated on 29 September.

Theme 2022: New technologies for greener shipping.

Explanation

World Maritime Day is celebrated on last Thursday of September. 

In 2022, it was celebrated on 29 September.

Theme 2022: New technologies for greener shipping.

Explanation

United Nations Educational, Scientific and Cultural Organization (UNESCO) declared 28 September as International Day for Universal Access to Information in 2015.

Explanation

• World River Day is observed on fourth Sunday of September to raise awareness regarding water bodies and to promote their conservation.
• Theme 2022: The importance of Rivers to Biodiversity 
  
• Theme 2023: Recognising the importance of transboundary river cooperation
• Theme 2024: Waterways of Life

Explanation

The European Day of Languages is observed 26 September, as proclaimed by the Council of Europe in 2001.

Explanation

International Day for South-South Cooperation is observed by United Nations on 12 September annually.

Explanation

• Since 1980, the United Nations World Tourism Organization has celebrated World Tourism Day as international observances on September 27.
• Theme 2020: Tourism and rural development
• Theme 2021: Tourism for Inclusive Growth
• Theme 2022: Rethinking Tourism
• Theme 2023: Tourism and green investments
• Theme 2024: Tourism and Peace
  

Explanation

• Since 1980, the United Nations World Tourism Organization has celebrated World Tourism Day as international observances on September 27.
• Theme 2020: Tourism and rural development
• Theme 2021: Tourism for Inclusive Growth
• Theme 2022: Rethinking Tourism
• Theme 2023: Tourism and green investments
• Theme 2024: Tourism and Peace

Explanation

• Since 1980, the United Nations World Tourism Organization has celebrated World Tourism Day as international observances on September 27.
• Theme 2020: Tourism and rural development
• Theme 2021: Tourism for Inclusive Growth
• Theme 2022: Rethinking Tourism
• Theme 2023: Tourism and green investments
• Theme 2024: Tourism and Peace

Explanation

The International Day to Protect Education from Attack is an international observance established by a unanimous decision of the United Nations General Assembly in 2020, observed on September 9 of each year.