most recent first…

Amendments and additions – most recent first

rotating images

On the first page of this site I wrote that there are likely to be continual changes as these notes are added to and the pages develop over time. Looking at other sites I’ve found I have a problem discovering what has changed since my last visit so, in an attempt to track what I’ve changed myself, I’ll make a determined attempt to keep this up to date by using this page to record each change.

However, although each reference will take you to the actual comment, when there is more than one change on a single page you will be taken only to that page and will then have to look down for the amendment or addition.

The latest additions and amendments to any of the pages will be marked by a pale background – as in this paragraph. I hope this will be sufficient to mark changes and be relatively easily seen.




2021.03.02 Population The population figures for February 2021 have been added.
2021.02.28 Arabic / Islamic geometry 02 An illustration has been added illustrating a tridecagon on a pattern on the Topkapi scroll.
2021.02.26 Arabic / Islamic geometry 02 Notes have been added on an approximate geometric construction of a tridecagon, and on an element of the Topkapi scroll.
2021.02.26 References A reference has beeh added to a construction of a thirteen-point pattern found on the Topkapi scroll.
2021.02.06 Arabic / Islamic geometry 01 An illustrated note has been added on the construction of a simple repeating pattern based on the assembly of nesting circles.
2021.02.03 Population The population figures for January 2021 have been added.
2021.01.21 Greeting cards A note has been added on the design of greeting cards for the winter of 2020/2021.
2021.01.04 References A reference has been added on Bronze Age development at Al-Khor island.
2021.01.02 Population The population figures for December 2020 have been added.
2021.01.01 Updates 2021 The site has been updated with respect to the copyright notices on each page.


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