Blake Esselstyn
@mapblake.bsky.social
45 followers 34 following 18 posts
Formerly @districks on the birdsite. Geography, demography, GIS, redistricting, fairmaps. Oh, and dataviz. NC native trying to learn some Dutch.
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Does the event start at 1:04? ;)
I just learned from a math teacher that it is a day: Perfect Square Day!

And this is a special one for this century, because 2025 is 45²

bsky.app/profile/sara...
9 days until Perfect Square Day! I know 9/9/25 is a perfect square, but 9/16/25 hits a bit different as it connects with a 3/4/5 right traingle. On another note, I made my nephews pose for this pic when the turned ages 3, 4 & 5.
Download a countdown HERE: docs.google.com/document/d/1...
Also, were you aware that 2025 is 45²?
I know three people whose birthday is today. I told them that they should celebrate at 1:04. =)
Do you know anyone whose birthday is today (Sept. 16th)?

If they like math—or even if they don't—you could point out to them that 9 / 16 / 25 is a sequence of perfect squares.

AND! 2025 is also a perfect square (45²).

Best time of day to acknowledge? Perhaps 1:04. 🤓
I was a bit surprised to see that searches for "census geopackage" and "tiger geopackage" in Bluesky turned up zero results. May this post remedy that situation!

5/5
What does it say about me that I've been on Bluesky since November of 2023 and this is what I choose to make my first original post/thread about? 🤓

4/5
It also appears that this is not new news; the first such release evidently was in 2024.

(For my work, I still mostly use the 2020 geographies because of their alignment with the PL 94-171 redistricting file.)

www.census.gov/newsroom/pre...

3/5
Census Bureau Releases New Geospatial Data
The U.S. Census Bureau today announced the release of new geospatial data, including the first-time release of TIGER/Line files in GeoPackage format.
www.census.gov
And (at least as of today) it would appear that the Census Bureau is making the 2025 TIGER data available as GeoPackages and NOT shapefiles.

www.census.gov/programs-sur...

2/5
TIGER Data Products Guide
Help determining which TIGER Product to use.
www.census.gov
Is the talk on the 4th or the 11th? The CNG post shows both.
The text of this post says Sept 4; the image says Sept 11. Which is accurate?
Sending my sympathies, Ruth.
Little typo in Michal Migurski's name. His handle is @mike.teczno.com
Reposted by Blake Esselstyn
JOB! Please RT.

Swarthmore is hiring for our Social Science Quantitative Lab Associate to support & do teaching quant methods to undergrads. Especially looking for people familiar with sociology and/or political science, and R. Apply by 4/18.

apply.interfolio.com/165892

Happy to answer questions.
Wish I could be there!
I'm fairly sure I know the answer to the trivia question. I was in that country earlier this month before the recent (and distressing) turn of events.
Good thread to review if you want a refresher before the arguments today.
On Monday, 3/24, the Supreme Court hears oral argument in a Louisiana racial gerrymandering case brought by *white* voters to challenge the state’s congressional map.

At issue is a new Black majority congressional district (LA-06 in the map below). A thread 🧵 on the case.