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30 June: what is celebrated today
30 June is a date that looks in several directions at once. Up to the sky, where ancient bodies travel and remind us of the planet’s fragility; to the screens, where everyday connections and debates are woven; to the institutions that shape democratic life; and also to health realities that demand visibility, empathy, and shared knowledge. A day to reflect on the collective from very different, yet deeply connected, perspectives.
International Asteroid Day
Every 30 June, humanity looks up to remember that it is not alone in the universe. International Asteroid Day commemorates the Tunguska impact of 1908, when a cosmic object devastated thousands of square kilometres of Siberian taiga. Since 2016, this date promoted by the UN has invited reflection on the real risks that come from space and on the shared responsibility to anticipate them.
But it is not only about possible catastrophes. Talking about asteroids is also talking about science, international cooperation and the future. Missions such as those involving orbital deflection symbolise a change of era: for the first time, humanity is not limited to observing the cosmos, but is learning to engage with it, measure it and, if the time comes, protect itself from its threats through knowledge and foresight.
Social Media Day
On the same day that we think about bodies orbiting silently in space, we also celebrate the networks orbiting around us. Social Media Day, created in 2010, recognises the impact of these platforms on how we inform ourselves, organise ourselves and express ourselves.
Beyond enthusiasm or criticism, social networks have become a global public square: they amplify voices, accelerate movements and also expose tensions. This day invites us to use them consciously, remembering that behind every profile is a real person and that communication, even digital communication, remains a human act that entails responsibility.
International Day of Parliamentarism
Democracy also has its place in the 30 June calendar. International Day of Parliamentarism focuses on parliaments as key institutions for representation, accountability and the balance of powers. Proclaimed by the UN in 2018, the date underscores their role in the 2030 Agenda and in building fairer societies.
Remembering parliamentarism is remembering that laws do not arise on their own: they are the result of dialogue, regulated conflict and commitment. In times of political disaffection, this observance invites us to reconsider the value of debated speech and collective decisions taken in the name of citizens.
World Arthrogryposis Multiplex Congenita Day
30 June also makes room for a less visible but profoundly human reality. World Arthrogryposis Multiplex Congenita Day seeks to raise awareness of this rare condition that affects mobility from birth. More than 300 distinct manifestations fall under this diagnosis, but all share the challenge of living in an environment that is not always designed for bodily diversity.
This day emphasises research, support and inclusion. It speaks of everyday resilience, of families and patients who call for something essential: understanding, resources and opportunities for a full life.
World Allergy Week
World Allergy Week also takes place around these dates, devoted to raising awareness of illnesses that affect millions of people worldwide. From mild reactions to serious conditions such as anaphylaxis, allergies remind us of the complex relationship between the body, the environment and the immune system.
The week invites people to seek information, recognise symptoms and not underestimate these conditions, especially in a context of climate change and environmental transformation. Knowledge, prevention and access to appropriate diagnosis are the key elements running through this observance.