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Welcome at the 26th International Congress
of History of Science and Technology website!

The main topic of the 26th International Congress
of History of Science and Technology will be:

Giants and Dwarfs in Science, Technology and Medicine”




Joining live sessions is very straighforward. Please follow the steps here


ICHST 2021 Congress will be organized virtually using Zoom platform (

  • You will be able to join all virtual sessions through the congress website after logging in to the USER ZONE.
  • Virtual sessions, abstract submission forms, and registration for the congress are accessible through the USER ZONE using the same username and password.
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  • You will not receive any join links by e-mail.
Information for speakers and moderators are available here.
The Preliminary Program at a Glance as a pdf file is available here.

News archive




We Go Virtual

Dear Colleagues,

We hope that you, your family, colleagues and friends are safe during these challenging times.

In view of the COVID-19 pandemic, the Local Organizing Committee of 26th ICHST, together with the DHST Council have taken a difficult decision to switch to a totally virtual congress.

The virtual congress will be held on the originally scheduled date: 25–31 July. As soon as the virtual ICHST 2021 concept is finalised, we will publish details on the website.

With our best regards and hoping to meet all of you during our virtual ICHST 2021!

ICHST 2021 Local Organising Committee



Welcome Remarks

The development of human understanding has not been balanced. Since time immemorial, it has depended on many objective and subjective factors. This unevenness is not merely chronological. Development also differed from region to region in a single era of history. Moreover, in a single region and a single era there may be great differences in the support of disciplines, teams, prominent figures. The title of the congress therefore features the terms “dwarfs” and “giants”, which symbolise this difference.

We can find a number of areas in which we, as science historians, use both terms figuratively. In what particular sense? We generally use these terms to refer to entities that stand out for their unusual size, i.e. entities that are visibly bigger than one might expect, or, on the other hand, considerably smaller.

Giants and dwarfs amongst scientific figures

First of all, we need to ask what are the criteria for the size of a scientific figure? Have they always been the same? To what extent do they relate to the criteria used today to evaluate science at the global or national levels? When classifying a particular scientist as a “giant”, does a historian make the decision based on that person’s scientific contribution, or rather how that individual was perceived and rated by his or her peers? Are the size, importance and respect of such figures also proof of their unity of status (e.g. scientific titles, membership of societies of excellence, receipt of national and international awards or awards within their field, etc.)? read more here

Petr Svobodný, Chair of the LOC
Milada Sekyrková, Scientific Secretary of the LOC



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