Boston 400 atlas
Historical event · September 1, 1897

First Subway in America (1897)

On September 1, 1897, the Tremont Street subway opened beneath Boston Common — the first subway in the Americas, still in service as the Green Line.

Why it matters

Part of the connected record of this place — 4 relationships link it into the wider graph, each one a thread worth pulling.

Open the full civic recordCurrent pulse, routes, recommendations, and memory
Living object

Now, then, future

Every object is temporal: what it feels like now, what it used to mean, and what it can become next.

Current modegolden hour
Historical echoAnne Hutchinson
Connected eventBoston 400 — The Quadricentennial (2030)
Pulse

How it feels right now

Current energybusy but readable
Best nowone good detour
Best timegolden hour
serendipitous
Rain scoreexcellent

Indoor escapes within a few blocks.

Laptop friendlinessdecent

Coffee, libraries, bookstores, and campus edges.

Student presencehigh

How strongly the nearby graph reads as campus life.

Tourist pressurelow

Fame, landmark pull, and visitor-facing assets.

Historic densitylight

Older records and historical edges around this object.

Serendipityhigh

Different kinds of things hiding within a short walk.

Turn this into a walk

Routes with a point of view

What should I see next?

Chosen moves from here

The editor's hand

Human recommendations

Civic memory

What this meant before

Date
September 1, 1897
Graph connections
4

In the graph 4 relationships — first-class data, not links

Explore First Subway in America (1897) in the interactive Graph Explorer — click to expand every connection →
Located in
Boston

Nearby what sits within a few minutes’ walk

Related reading

An unexpected connection

First Subway in America (1897) is linked, through the graph, to South Station building / landmark, 10 min walk away. The kind of thread you only find by following the connections.

Keep exploring graph-powered — every path below is a real relationship, not a guess

One record, 1 framing cross-property publishing — never duplicated

Boston400.com · you are here

How we know graph confidence — we explain our certainty, not just assert it

Source qualityBest source is primary / institutional
Independent corroboration2 sources
Human-reviewedEditorially verified
Institutional backingCites a primary or institutional source
Record completeness80% of canonical fields present
Sources, by tier
MBTA archives Primary / institutional
Boston Globe archive Primary / institutional
Graph scores — our north star is relationship density, not page count
Relationship density44
4 connections
Record coverage66
metadata completeness
Graph authority67
centrality + reach + trust
Schema.org JSON-LD — what answer engines read
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