About Longseries
Longseries is an archive, not a dashboard. Each series has a page with its source and licence. A slice stacks lines and years — no account, nothing stored on a server. The address is the state.
We do not invent these numbers. We copy them from open publishers, keep the attribution, and make the CSV boring to download.
Data lives on disk, outside the JS bundle. GitHub Actions fetches World Bank, Eurostat, GUS and OECD, then rebuilds the static site. When the catalog changes, the warehouse gets a new version number. When a publisher changes a past value, the old number moves to revisions.
Calculators that use your own inputs live on RiverMath.
Site releases
UI changes on this branch (not the warehouse log — that is on the changelog page).
- v0.67.0
New read-together pair life-expectancy-and-health-expenditure compares years at birth with health spending as % of GDP on one page.
- v0.66.0
Line pictograms mark the seven topic groups and each series by its leading tag, in the nav, plates, finder, and headings.
- v0.65.0
Place links in the latest-values table now show a visible focus ring when navigated with the keyboard.
- v0.64.0
The front door is a yearbook cover: copper ink on paper, the first series as a plate with the figure under the motif, and pairs as cards instead of a list.
- v0.63.0
New read-together pair age-dependency-and-population-growth links the age pyramid with annual population change on one page.
- v0.62.0
Series links on the data changelog page now show a visible focus ring when navigated with the keyboard.
- v0.61.0
New read-together pair infant-and-under5-mortality compares first-year and under-five deaths per 1,000 births on one page.
- v0.60.0
Crude birth and death rates join the Poland geo desk headlines beside GUS fertility and natural increase.
- v0.59.0
Release version links on the about page now show a visible focus ring when navigated with the keyboard.
- v0.58.0
New read-together pair death-rate-and-life-expectancy contrasts annual deaths per 1,000 with years at birth on one page.
- v0.57.0
New read-together pair population-growth-and-net-migration links annual population change with net migration on one page.
- v0.56.0
Read-together pair index links now show a visible focus ring when navigated with the keyboard.
- v0.55.0
Crude birth and death rates join the home shelf canon alongside fertility and population series.
- v0.54.0
The expandable remaining-places control in latest values now shows a visible focus ring for keyboard users.
- v0.53.0
New read-together pair birth-rate-and-death-rate compares births and deaths per 1,000 people on one page.
- v0.52.0
New series: crude death rate (World Bank SP.DYN.CDRT.IN) pairs with birth rate on the same per-1,000 scale.
- v0.51.0
Show all row buttons on series, slice, and finder pages now show a visible focus ring for keyboard users.
- v0.50.0
New read-together pair birth-rate-and-fertility explains births per 1,000 people versus children per woman.
- v0.49.0
New series: crude birth rate (World Bank SP.DYN.CBRT.IN) with notes linking fertility and population.
- v0.48.0
Related series links now show a visible focus ring when navigated with the keyboard.
- v0.47.0
Series pages now link to read-together pairs when the series is part of a named pair.
- v0.46.0
New read-together pair mothers-and-infants links maternal and infant mortality with a shared takeaway and slice.
- v0.45.0
New series: maternal mortality ratio (World Bank SH.STA.MMRT) with cross-linked health notes in en/pl/de.
- v0.44.0
The expandable latest-values table now has a screen-reader caption for the remaining places.
- v0.43.0
Series finder result links now show a visible focus ring when navigated with the keyboard.
- v0.42.0
Publisher filter chips in the series finder now show a visible focus ring for keyboard users.
- v0.41.0
Breadcrumb links now show a visible focus ring when navigated with the keyboard.
- v0.40.0
Warehouse version and publisher revision tables on the changelog page now include screen-reader captions.
- v0.39.0
The latest-values table on series pages now has a screen-reader caption with the place count.
- v0.38.0
Locale switch links now show a visible focus ring when navigated with the keyboard.
- v0.37.0
Publisher revision tables on series pages now include a screen-reader caption with the revision count.
- v0.36.0
Copy link buttons on series and slice pages also announce clipboard success to screen readers.
- v0.35.0
Warehouse version dates on the changelog page are formatted in the visitor's locale.
- v0.34.0
Copy-to-clipboard buttons announce success with aria-live for screen readers.
- v0.33.0
The place filter dropdown on series pages shows a visible focus ring for keyboard navigation.
- v0.32.0
The warehouse changelog page formats revision dates in the visitor's locale via a shared date helper.
- v0.31.0
Publisher revision dates on series pages use the visitor's locale instead of raw ISO strings.
- v0.30.0
Release version labels on About link to their anchors so you can copy or share a specific entry.
- v0.29.0
Slice studio announces the row count with aria-live when lines or filters change.
- v0.28.0
Slice studio catalog search opens with / or Ctrl+K; Escape clears the filter.
- v0.27.0
Series and slice data tables now have captions that name the series and year window.
- v0.26.0
About lists every site release so footer version anchors always resolve.
- v0.25.0
The language switcher marks the active locale with aria-current and a labelled group.
- v0.24.0
Series pages announce the row count when you change the place filter, with a live status for screen readers.
- v0.23.0
The series finder also opens with Ctrl+K (Cmd+K on Mac), alongside the existing / shortcut.
- v0.22.0
Each site release on About has a version anchor; the footer version link jumps to that entry.
- v0.21.0
Data table column headers now declare scope=col for clearer screen reader navigation.
- v0.20.0
Release dates on About are formatted in the visitor's locale instead of raw ISO dates.
- v0.19.0
Slice studio shows 120 table rows first, with a button to expand the full result set.
- v0.18.0
Series pages now have a Copy link button that shares the current URL, including any country filter.
- v0.17.0
Keyboard users can skip the header with a focusable link that jumps to the main content.
- v0.16.0
About lists recent site releases from app-changelog.json; the footer version links there.
- v0.15.0
The series finder shows 40 matches first, with a button to expand the full filtered list.
- v0.14.0
The site footer shows the app version from package.json next to the attribution note.
- v0.13.0
Slice CSV downloads include # comment lines with the cite URL, year window, and transform.
- v0.12.0
Series finder results are sorted alphabetically by localized title in the active locale.
- v0.11.0
Escape clears the series finder query and publisher filter, complementing the / focus shortcut.
- v0.10.0
Dataset charts announce a live status while refetching /data/{slug}.json on the static site.
- v0.9.0
Press / anywhere on home or the full catalog to jump into the series finder search field.
- v0.8.0
Dataset pages offer a direct JSON download of the warehouse file alongside CSV.
- v0.7.0
Home page shows the slice builder hint and a RiverMath link for calculators that use your own inputs.
- v0.6.0
Dataset CSV downloads include # comment lines with the series title, source, licence, and retrieval date.
- v0.5.0
Site navigation marks the current page with aria-current and a visible focus ring on keyboard focus.
- v0.4.3
p1 preview deploy is manual-only (workflow_dispatch); pushes to c25 no longer rsync to Ace.
- v0.4.2
Preview deploy now removes stray files from the p1 domain root left by the first failed rsync to the wrong path.
- v0.4.1
Preview deploy targets public_html, cleans partial uploads, and symlinks /data from production so p1 does not duplicate the warehouse.
- v0.4.0
Series finder now supports multi-word search and publisher filter chips. Screen readers get live status updates while the catalog loads and when results change.