like that map.. it&#x27;s been on hn a few times. have it bookmarked.<p>This article has a similar map (same data source) with a slider by year:
<a href="https:&#x2F;&#x2F;builtvisible.com&#x2F;messages-in-the-deep&#x2F;" rel="nofollow">https:&#x2F;&#x2F;builtvisible.com&#x2F;messages-in-the-deep&#x2F;</a>
(The article is also interesting)