Using the Henry Hudson 400 Map


The Henry Hudson 400 Map provides an interactive display of information for five key themes:
  • Historical Maps: Maps that provide a glimpse into various parts of the world in the past. These maps will be part of a spectacular Rare Maps exhibition on the early history of New York, opening at the South St. Seaport Museum (NY) in September 2009.
  • Henry Hudson's Voyages: Learn about Henry Hudson's exploration efforts, including his two voyages to the New World.
  • Events: View key henry Hudson events and location for 2009.
  • Origins: Explore the shared history of Amsterdam and New York and--through the first settlers--the legacy of diversity of New Amsterdam. Users are encouraged to add their own stories and content for this theme.
  • Water Challenges: Explore and learn about the impact of rising sea levels for coastal cities in the 21st century.

Getting to Know the Henry Hudson 400 Map

Getting to Know the Henry Hudson 400 Map
  1. Layer Toggle - Use this checkbox to turn layers on and off on the map. For example, you can turn on the Map Illustrations layer to view locations and images for historical maps around the world.
  2. Current Theme Heading - A light blue background and the down arrow icon on the left hand side indicate that this theme is currently selected, and the layer legend beneath shows layer toggles for turning layers on and off, as well other controls, such as the gradient control, maximum extent button, and information button.
  3. Full Screen Toggle - Click on this control to enlarge the map to the full extent of your browser window. When the ful screen map is toggled on, a 'Small Screen' Toggle is displayed.
  4. Opacity Toggle - Click on this button to toggle the opacity (transparency) control for a historical map overlay (these controls are hidden by default). The opacity of a historical map can be controlled individually, or you can use the Master Opacity Control to set the opacity for all historical map overlays (see #11 below).
  5. Maximum Extent Button - Click on this button to reset a layer's geographic extent and zoom the map to view all of the layer's information.
  6. Information Button - Click on this button to view more information about a specific layer. A small window will pop open with the additional information.
  7. Sidebar Toggle - This toggle controls whether the sidebar (theme legend) is visible. Clicking on it will hide the sidebar. Once the sidebar is hidden, you can click on this toggle to show the sidebar again.
  8. Google Maps Navigation Controls - These controls are used to move and zoom the map. See "Using the Map" below.
  9. Street View Toggle - Clicking on this control will activate the Google Maps Street View layer, which allows you to view street level imagery in 360 degrees. Click here to learn more about Street View. *Note that the street view functionality on our map does not allow dragging of the street view marker.
  10. Map Type Controls - These controls are used to change the Google Maps view in the background. Selections include:
    • Map - This shows a map with a traditional depiction of roads, parks, borders, bodies of water and more.
    • Satellite - This shows aerial imagery. To show street names and other information, check Show labels.
    • Terrain - This shows physical elevation as shaded relief and elevation lines. It also includes street names and other information.
    • Earth - This toggles the Google Earth Plugin, which allows you to view the world in 3D inside of your browser.
  11. Master Opacity Control - Use this control to set the opacity (transparency) for all historical map overlays (scanned map images) on the map.
  12. Visible Maps Container (Historical Map Overlays only) - Anytime you toggle a historical map, it will be added to the yellow section of the map. Toggling an active map, will hide that map and return the layer legend to the section below (the section in white).
  13. Inactive Theme Headings - A darker blue background and the side arrow icon on the left hand side indicate that these themes are not selected, and the layer legends for these themes are hidden (although layer content that has been toggled is still active on the map).
  14. Map Marker - This is a clickable map marker. Clicking on it opens and information window on the map that displays information, images, links, videos, and/or 3D models associated with this location. Each theme has different map markers.
  15. Cluster Map Marker - A small blue square at the top right of a map marker indicates that the map marker represents a cluster of map markers. Clicking on the map marker will display a list of the map markers, which can then be clicked to open the information window for that specific map marker.
  16. Top Ten List Control - We have compiled a list of the top ten must see items on our map. Hovering your mouse over thid control shows a drop-down list of items that you can click on.
  17. Shortcuts Control - Use this control to display a list of shortcuts to destinations around the world. As with the Top Ten List Control, hovering your mouse over this control will display a clickable drop-down list of shortcuts.
  18. Overview Map - This map can be displayed by clicking the small diagonal arrow Show overview map button at the bottom right part of the map. The overview map shows the location of current map view in the context of a larger geographical area.

Using the Map

The Henry Hudson 400 Map utilizes Google Maps to provide a fun and easy interactive experience. Google Maps has quickly become a key technology for developing maps such as the Henry Hudson 400 Map--this type of map is considered a map mashup. If you are not familiar with the base functionality of Google Maps, we have provided a primer on the application's base functionality below.
Navigating in Google Maps

You can navigate (move your view) in two dimensions in any Google Map. To pan (move the map), do one of the following:

  • Click and drag the map
  • Press the up arrow on your keyboard to move north
  • Press the down arrow on your keyboard to move south
  • Press the right arrow on your keyboard to move east
  • Press the left arrow on your keyboard to move west

Additionally, you can zoom in or out pressing the + or - keys. Move the cursor over a location and use the mouse scroll button to zoom in or out on that location. To center and zoom in on a location, double click the location.

Using the Navigation Controls
Navigation controls

The navigation controls you see on the left are the same as those on the Main Google Maps site. Navigation controls include:

  1. Arrows - Click the appropriate arrow buttons to move the view north, south, east or west.
  2. Street View - Click to view street-level imagery
  3. Zoom - Click + to zoom in on the center of the map. Click - to zoom out.
  4. Zoom slider - Drag the zoom slider up or down to zoom in or out incrementally.
Using the Overview Map
Overview map  

The overview map (shown left here) appears in the bottom right corner of the map. It helps orient you by showing the location of current map view in the context of a larger geographical area. The area currently displayed in the map is show as a purple box in the overview map. At any time, click Hide overview button to hide the overview map or click Show overview map button to display it again.

As you pan or zoom in the map, the overview map view changes accordingly. You can change the existing view in the map by doing one of the following:

  • Drag and drop the purple box in the overview map.
  • Drag and drop the area outside the purple box to pan the map.

Information Windows

Whenever you click on a marker, an information window will open and display information associated with a specific location. All map markers include a title and description; in addition, many of the map markers include images, links to other resources, videos, and/or 3D models (which can be viewed directly in the information window or in the Google Earth Plugin). The information window contains vertical tabs on the left, which when clicked, activate specific types of content.

Information Window
  1. Vertical Menu Tabs - Click on these tabs to view relevant information, such as images and links, in the information window.
  2. Maximize Button - Click on this button to maximize the information window.
  3. More Link - If the description text is too long to display in the information window, the more link is displayed. Click on this link to maximize the information window and view the full description.
  4. Information Window Content - This section of the information window contains the active content, as selected by the vertical tabs on the left (title and description by default).

Also note that the information windows can viewed in both a regular size and a maximized side. By default, when you click on the Images, Videos, or 3D tab on the left, the information window will maximize.

Cluster Marker Back Link Also note that when you open an information window through a cluster marker, a link will appear at the top that allows you to navigate back to the list of options displayed via the cluster marker:

Themes and Layers

The Henry Hudson 400 Map includes various types of data that display are displayed in different ways on the map. Below is an explanation of each theme and its layer(s):
  • Historical Maps - The Historical Maps theme shows historical maps. It has two types of layers:
    1. Illustrations Map Illustrations - These are scanned images of historical maps, often depicted as illustrations of landscapes, that are displayed using map markers. When you click on an illustration map marker, the information window displays a thumbnail image of the historical illustration map. Clicking on the thumbnail opens a new browser window with a larger version of the image.
    2. Map Overlays - These are scanned images of historical maps that have been geographically referenced and corrected to display on top of the Google Maps view. You can zoom in on historical map overlays to see more details.
      Historical Map Overlays
      When you first turn on a historical map overlay, a small window will pop up in the sidebar, next to the layer name and layer button controls. You can learn more about the map by reading the brief description, and there is an option available to view the historical map side-by-side with a modern-day Google Map. Look for the following icon to activate the side-by-side view:
      Side-by-Side Maps
  • Henry Hudson's Voyages - This theme includes four layers, one for each of Henry Hudson's voyages. When you click on a toggle for a voyage, the voyage route is displayed as a line, with arrows that depict the direction in which he sailed. Voyage milestones are also depicted as map markers: there are anchor map icons and a special "Half Moon" map icon for these milestones.
    Henry Hudson's Voyages
  • Events - Events This theme displays locations as map markers for events in 2009 that are related to the 400th anniversary of Henry Hudson's voyage to North America.
  • Origins - Origins This theme displays locations as map markers to highlight locations where there is a shared history between Amsterdam and New York.
  • Water Challenges - H209 This theme displays locations as map markers to display the impact of rising sea levels for coastal cities in the 21st century.

3D Content

Some of the points of interest that are displayed on the map (Henry Hudson's Voyages, Origins, and Events) provide access to rich 3D models that can be viewed in the information window of a marker as a "swivel" without the need for any browser plugins.

Sample 3D swivel:
Swivel View

Additionally, users who have installed the Google Earth Plugin for web browsers can view the 3D models in Google Earth directly in their web browsers. Whenever you click on a map marker that provides access to 3D content, the 3D tab will be visible. Clicking on that tab will display the swivel view, and clicking on the link below will activate the Google Earth Plugin and display the 3D model as part of the Google Earth terrain view.

Viewing a 3D model in the Google Earth Plugin:
3D Model View in Google Earth Plugin

Sea Monster

We've added another fun touch to the Henry Hudson 400 Map: a sea monster is lurking around somewhere on the map. Keep an eye out for it, as it sometimes shows itself briefly, and you can get an indication of where it is lurking. Once you've found the Sea Monster you will hear its mighty roar.

Can you find the Sea Monster

Additional Help

If you need additional assistance or you would like to contact us regarding the Henry Hudson 400 Map, please go to our Contact page and select the appropriate organization contact.