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4 October: what is celebrated today
There are dates on the calendar that seem made to remind us of what is essential. 4 October is one of them: a day that brings together the animals that accompany us, the water that gives us life, the solidarity of donation and the beauty of the Moon watching over our dreams. It is, ultimately, a reminder that everything in the world — and beyond it — is connected.
World Animal Day
In 1925, Berlin was the setting for the first celebration of World Animal Day. Since then, every 4 October we have remembered that life on Earth does not belong to humans alone.
The date coincides with the feast day of Saint Francis of Assisi, who centuries ago stated that our wellbeing is bound to that of animals and the environment. Today his words, once ignored, sound like a prophetic echo. This day is an invitation to recognise that protecting animals is not an isolated act of compassion, but an act of justice towards the cycle of life.
European Day for Organ Donation, Tissues and Cells
The first Saturday in October also has a place for the purest solidarity: donating a part of oneself so that another person can live.
Every transplant represents more than a medical procedure; it is the embodiment of hope. A life that continues because someone decided to share what is most valuable: the possibility of continuing to breathe.
International Observe the Moon Night
On 4 October 2025, the world will look up at the sky on International Observe the Moon Night. NASA and astronomers from every corner are organising gatherings to bring our satellite closer to those who look at it with fascination.
That day, telescopes and gazes become windows onto the same mystery. The Moon, eternal witness to our myths, poetry and science, reminds us once again that curiosity is the engine that drives us to explore the unknown.
Inter-American Water Day
Water also makes its presence felt on this date, with Inter-American Water Day. Since 1992, it has been celebrated on the first Saturday in October to underline that, although it may seem inexhaustible, it is the most fragile resource we have.
In Latin America and the Caribbean, millions of people still do not have access to safe water. This day is an alarm and, at the same time, a commitment: caring for water is caring for life itself.
4 October is no ordinary day: it is a mosaic that brings together animals, human beings, water and even the Moon. A day to remember that our existence is intertwined with that of every living being, every drop and every star we observe.