A gigantic map of all the cool plaques in the world. A project of 99% Invisible.

Michigan Paper Company Mill

On January 26, 1886, twenty-five businessmen founded the Michigan Paper Company. Daniel Albertson, a mill designer from Kalamazoo, built the mill complex using slow-burn construction methods....

On January 26, 1886, twenty-five businessmen founded the Michigan Paper Company. Daniel Albertson, a mill designer from Kalamazoo, built the mill complex using slow-burn construction methods....

  • michigan
  • michigan his...

St. Joseph's Retreat

In 1885 Michigan’s first private mental institution was located here under the guidance of the Daughters of Charity of St. Vincent de Paul. In 1855 the Sisters at St. Mary’s Hospital in Detroit...

In 1885 Michigan’s first private mental institution was located here under the guidance of the Daughters of Charity of St. Vincent de Paul. In 1855 the Sisters at St. Mary’s Hospital in Detroit...

  • michigan
  • michigan his...

Juneteenth

  JUNETEENTH COMMEMORATED ANNUALLY ON JUNE 19TH, JUNETEENTH IS THE OLDEST KNOWN CELEBRATION OF THE END OF SLAVERY IN THE U.S THE EMANCIPATION PROCLAMATION, ISSUED BY PRESIDENT ABRAHAM LINCOLN ON...

  JUNETEENTH COMMEMORATED ANNUALLY ON JUNE 19TH, JUNETEENTH IS THE OLDEST KNOWN CELEBRATION OF THE END OF SLAVERY IN THE U.S THE EMANCIPATION PROCLAMATION, ISSUED BY PRESIDENT ABRAHAM LINCOLN ON...

  • juneteenth
  • texas

Frederick Pelham: Bridge Engineer

Frederick Pelham: Bridge Engineer   Frederick Pelham was born on November 7, 1864.  He attended school in Detroit.  In 1887, he became the first African American to receive an Engineering Degree...

Frederick Pelham: Bridge Engineer   Frederick Pelham was born on November 7, 1864.  He attended school in Detroit.  In 1887, he became the first African American to receive an Engineering...

    La Gota de Leche historical marker

    Mapagkawanggawang proyekto ng La Proteccion de la Infancia na nagbibigay ng gatas sa mga sanggol. Pinasinayaan sa Daang San Pedro, ngayon Daang Evangelista, Quiapo, 1907. Nagpatayo ng bagong...

    Mapagkawanggawang proyekto ng La Proteccion de la Infancia na nagbibigay ng gatas sa mga sanggol. Pinasinayaan sa Daang San Pedro, ngayon Daang Evangelista, Quiapo, 1907. Nagpatayo ng...

    • philippines
    • encyclopedia...

    San Pedro Macati historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-4.0.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-4.0.

    • philippines
    • encyclopedia...

    Our Lady of Peace and Good Voyage historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    • philippines
    • encyclopedia...

    Archbishopric of Lipa historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    • philippines
    • encyclopedia...

    Dental Profession in the Philippines historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-4.0.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-4.0.

    • philippines
    • encyclopedia...

    The Church of Badoc historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-4.0.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-4.0.

    • philippines
    • encyclopedia...

    The Shrine of Melchora (Tandang Sora) Aquino historical marker

    Dito inilipat ang mga labi ni Melchora Aquino mula sa Himlayang Pilipino bilang paggunita sa ika-200 taong anibersaryo ng kanyang kapanganakan, 6 Enero 2012. Ipinahayag na Pambansang Dambana sa...

    Dito inilipat ang mga labi ni Melchora Aquino mula sa Himlayang Pilipino bilang paggunita sa ika-200 taong anibersaryo ng kanyang kapanganakan, 6 Enero 2012. Ipinahayag na Pambansang Dambana sa...

    • philippines
    • encyclopedia...

    The Church of Pakil historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    • philippines
    • encyclopedia...

    Rizal’s Execution Site historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    • philippines
    • encyclopedia...

    Church of Loon historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is PD-PhilippinesGov.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is PD-PhilippinesGov.

    • philippines
    • encyclopedia...

    Church of Taytay historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    • philippines
    • encyclopedia...

    Isabelo F. de los Reyes historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is None.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is None.

    • philippines
    • encyclopedia...

    Battle of Malinta historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is PD-PhilippinesGov.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is PD-PhilippinesGov.

    • philippines
    • encyclopedia...

    The Church of Bulacan historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-4.0.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-4.0.

    • philippines
    • encyclopedia...

    Deathplace of Teodora Alonso historical marker

    Sa pook na ito namatay si Teodora Alonso, ina ni Jose Rizal, noong 16 Agosto 1911. Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the...

    Sa pook na ito namatay si Teodora Alonso, ina ni Jose Rizal, noong 16 Agosto 1911. Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of...

    • philippines
    • encyclopedia...

    San Beda College historical marker

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    Content courtesy of Encyclopedia of Philippine Heritage, which is an ongoing program of the Wiki Society of the Philippines. Wikimedia image page here, image license is CC-BY-SA-3.0.

    • philippines
    • encyclopedia...