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21 September: what is celebrated today
The calendar is full of special dates, but there are days that seem to bring many different voices together in one melody. 21 September is one of them: a day that speaks of peace, art, memory, nature, music and books. It is a day that invites both reflection and celebration, reminding us that the world is as fragile as it is rich in human expression.
International Day of Peace
Proclaimed by the UN, this day asks something as simple as it is revolutionary of us: 24 hours without violence and with a ceasefire. In 2024, the motto «Promoting a Culture of Peace» coincides with the 25th anniversary of the Declaration on a Culture of Peace. The idea is clear: peace is not merely the absence of war, but dialogue, cooperation and mutual respect.
World Alzheimer’s Day
Since 1994, every 21 September has remembered those who fight this illness, which erases memories but never the love of those who stand by them. It is estimated that by 2050 there will be more than 131 million people with Alzheimer’s, hence the urgency of raising awareness, conducting research and supporting families and patients.
Visual Artist Day
It is the moment to pay tribute to those who turn canvases, clay or metals into works that move us. Visual artists invite us to look with different eyes, to feel the invisible and to discover that creativity is also a form of resistance.
International Day Against Tree Monocultures
It began in Brazil in 2004 as a voice against industrial plantations that erode soils, destroy ecosystems and impoverish communities. This day reminds us that not everything “green” is sustainable and that preserving biodiversity means protecting life itself.
World Pagan Pride Day
Beyond temples and dominant creeds, paganism celebrates the connection with nature and spiritual diversity. This date seeks to break taboos and show that all beliefs deserve respect, as long as they promote coexistence and care for the planet.
International Progressive Rock Day
A genre that mixed rock with jazz, classical music and experimentation to show that art can also sound electric. Since the 1960s, prog rock has won over ears around the world and today celebrates its innovative, free spirit.
International Bibliodiversity Day
Because not everything is bestsellers. This day defends the work of independent and small publishers, which make room for new, daring and necessary voices. Bibliodiversity is, in essence, the guarantee that there will always be a different book waiting for us on some shelf.
21 September is, then, a day that combines peace, memory, art, nature, spirituality, music and literature. A date to think, feel and act in favour of a fairer, more diverse and more humane world.