Tumblr, Bear, and Blog: ChinaCulture.org
<p><a class="tumblr_blog" href="http://exeunt-pursued-by-a-bear.tumblr.com/post/112012532722">exeunt-pursued-by-a-bear</a>:</p>
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<p><a class="tumblr_blog" href="http://a-mini-a-day.tumblr.com/post/112002524086">a-mini-a-day</a>:</p>
<blockquote>
<p>300-year-old Chinese abacus ring was used during the Qing Dynasty to help traders.<a href="http://www.dailymail.co.uk/sciencetech/article-2584437/Is-wearable-computer-300-year-old-Chinese-abacus-ring-used-Qing-Dynasty-help-traders.html"><br/>Source</a>.<br/></p>
</blockquote>
<p>[18th century Chinese teenager voice] <br/>Haha and teachers said we wouldn’t have a calculator with us everywhere we go</p>
</blockquote>

exeunt-pursued-by-a-bear:

a-mini-a-day:

300-year-old Chinese abacus ring was used during the Qing Dynasty to help traders.
Source
.

[18th century Chinese teenager voice]
Haha and teachers said we wouldn’t have a calculator with us everywhere we go