Historical Markers

This point layer contains locations of six types of historical markers throughout Cambridge, including blue oval historic markers, African American Heritage Trail markers, North Cambridge historic markers, granite tombstone markers, cast-iron markers, and Cambridge History Stations. The markers commemorate significant sites, events, buildings, and prominent figures in Cambridge history. A list of historical markers was created and is maintained by the Cambridge Historical Commission. Cambridge founded its historical marker program in 1976. Explore all our data on the Cambridge GIS Data Dictionary. Attributes Name Type Details Description ADDRESS type: String width: 75 precision: 0 Closest address to marker DESCRIPTION type: String width: 75 precision: 0 Location description NAME type: String width: 75 precision: 0 Name of the feature NEIGHBORHOOD type: String width: 25 precision: 0 Neighborhood MARKER_TYPE type: String width: 25 precision: 0 Type of historical marker EditDate type: String width: 4 precision: 0 Last edit date created_date type: Date width: 8 precision: 0 last_edited_date type: Date width: 8 precision: 0 Marker_Number type: String width: 10 precision: 0 Marker number本点图层涵盖剑桥全市范围内六类历史标识牌的点位信息，包括蓝色椭圆形历史标识牌、非裔美国人遗产步道标识牌、北剑桥历史标识牌、花岗岩墓碑标识牌、铸铁标识牌以及剑桥历史站点标识牌。此类标识牌用于纪念剑桥历史上的重要场所、历史事件、特色建筑与知名人物。 该历史标识牌清单由剑桥历史委员会（Cambridge Historical Commission）编制并持续维护，剑桥市于1976年正式启动历史标识牌项目。 您可在剑桥GIS数据字典（Cambridge GIS Data Dictionary）中浏览本数据集的全部内容。 #### 属性列表 | 属性名 | 数据类型 | 字段宽度 | 精度 | 说明 | | --- | --- | --- | --- | --- | | ADDRESS | 字符串型 | 75 | 0 | 标识牌的最近临街地址 | | DESCRIPTION | 字符串型 | 75 | 0 | 点位详细描述 | | NAME | 字符串型 | 75 | 0 | 要素名称 | | NEIGHBORHOOD | 字符串型 | 25 | 0 | 所属社区 | | MARKER_TYPE | 字符串型 | 25 | 0 | 历史标识牌类型 | | EditDate | 字符串型 | 4 | 0 | 最后编辑日期 | | created_date | 日期型 | 8 | 0 | 数据创建日期 | | last_edited_date | 日期型 | 8 | 0 | 数据最后编辑日期 | | Marker_Number | 字符串型 | 10 | 0 | 标识牌编号