2026-06-29, Lief dagboek
Maandag; Wat eten we vandaag?; Klokkenluider DigiD geschorst; Wereld Sclerodermie Dag; Dag van de Tropen.

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In de geschiedenis
Wereld Sclerodermie Dag / World Scleroderma Day 2026

Op 29 juni wordt jaarlijks tijdens Wereld Sclerodermie Dag / World Scleroderma Day aandacht gevraagd voor (behandeling van en onderzoek naar) Sclerodermie / systemische sclerose (Engels: (systemic) scleroderma), een chronische auto-immuunziekte die wordt gerekend tot de reumatische aandoeningen.
De naam ‘sclerodermie’ betekent ‘harde huid’. De ziekte veroorzaakt een verharding (sclerosering) van bindweefsel die zich doorgaans voordoet in de huid en vaak gepaard gaat met problemen van de haarvaten. Het kan ook interne organen aantasten, waaronder de maag, slokdarm, darm, longen en nieren. Er wordt onderscheid gemaakt tussen twee verschijningsvormen: morfea en systemische sclerodermie. Hoewel morfea en systemische sclerose gelijksoortige huidafwijkingen hebben, is er verder weinig overlap. Morfea gaat niet in systemische sclerose over. Symptomen die pleiten voor systemische sclerose zijn het fenomeen van Raynaud, symmetrische huidafwijkingen en positieve ANA. Systemische sclerose is relatief zeldzaam: slechts twee tot zestien nieuwe gevallen per miljoen inwoners. Morfea komt vaker voor. De oorzaak is niet bekend. Er wordt onderzocht of het mogelijk een erfelijke achtergrond heeft.
Links:
World Scleroderma day
#WeAreTheTropics #TropicsDay Day of the Tropics / Dag van de Tropen 2026

The International Day of the Tropics celebrates the extraordinary diversity of the tropics while highlighting unique challenges and opportunities nations of the Tropics face, it provides an opportunity to take stock of progress across the tropics, to share tropical stories and expertise and to acknowledge the diversity and potential of the region.
The Tropics are a region of the Earth, roughly defined as the area between the tropic of Cancer and the tropic of Capricorn. Although topography and other factors contribute to climatic variation, tropical locations are typically warm and experience little seasonal change in day-to-day temperature. An important feature of the Tropics is the prevalence of rain in the moist inner regions near the equator, and that the seasonality of rainfall increases with the distance from the equator. The tropical region faces several challenges such as climate change, deforestation, logging, urbanisation and demographic changes. Tropica
- By 2050, the region will host most of the world’s people and two-thirds of its children.
- Consis
tent with the higher levels of poverty, more people experience undernourishmen t in the Tropics than in the rest of the world. - The proportion of the urban population living in slum conditions is higher in the Tropics than in the rest of the World.
The inaugural State of the Tropics Report was launched on 29 June 2014, as the culmination of a collaboration between twelve leading tropical research institutions. The report offers a unique perspective on this increasingly important region. Marking the anniversary of the report’s launch the United Nations General Assembly adopted resolution A/RE
Day of the Tropics
In de geschiedenis
Links:
Wikipedia
2026-06-28, Lief dagboek
Zondag; Wat eten we vandaag?; Modern warfare: de VS en AI; Tau-Dag.

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Tau-Dag / Tau Day 2026

Tau (τ) [/tɑu/] heeft, in navolging van pi-dag, ook een eigen dag: tau-dag.
Tau is de 19e letter van het Griekse alfabet, is in 2010 door fysicus-onderne
Links:
The Tau Manifesto
In de geschiedenis
Links:
Wikipedia
2026-06-27, Lief dagboek
Zaterdag; Wat eten we vandaag?; Datacenter; Day of Deafblindness.

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Day of Deafblindness 2026

The UN General Assembly adopted resolution A/RES/79/294, proclaiming 27 June of each year the International Day of Deafblindness.
This day commemorates the birth of renowned author Helen Keller (1880 – 1968), one of the most iconic figures in the deafblindness community. Deafblindness is a combined vision and hearing impairment of such severity that it is hard for the impaired senses to compensate for each other, and is thus a distinct disability with its own specific challenges, barriers and requirements for support and inclusion, different from those provided to individuals, who are solely deaf or blind. Deafblind persons face barriers owing to deafblindness not being treated and/or recognized as a distinct disability, further leading to invisibility in statistics, policies and programmes, and therefore impeding access to services. Professional deafblind interpreters and interpreter-guides are critical in ensuring access to information, communication, services and fundamental rights, as well as enabling individuals with deafblindness to live independently and be included in the community.
Links:
Day of Deafblindness
In de geschiedenis
Links:
Wikipedia




