1988 25¢ Antarctic Explorers: Lt. Charles Wilkes
US #2387 pictures Wilkes and his ship the Vincennes, which was part of this expedition.

On January 19, 1840, US Naval captain Charles Wilkes became the first American to explore the coast of Antarctica.

Born on April 3, 1798, in New York City, New York, Charles Wilkes joined the US Navy in 1818. In the 1820s he was part of the Columbian Institute for the Promotion of Arts and Sciences. And in the 1830s, his survey of Narragansett Bay earned him a promotion to head of the Navy’s Department of Charts and Instruments, where he developed the Naval Observatory and Hydrographic Office.

1988 25¢ Lt. Charles Wilkes Classic First Day Cover
US #2387 – Classic First Day Cover

As early as 1828, President John Quincy Adams had wanted to send a naval surveying expedition to the Antarctic Ocean. At the time, ships traveling to the Antarctic in search of whales, seals, and fish were wrecked because the area was uncharted. Despite these concerns, Congress wouldn’t award the funding. It wasn’t until 1836, under President Andrew Jackson, that funding was finally granted, though the project would stall again until President Martin Van Buren pushed for it while in office. Due to the long delay, the original commanding officer resigned, and Wilkes was selected due to his experience with hydrography, geodesy, and magnetism. Naturalists, botanists, a mineralogist, taxidermists, artists, and a philologist joined Wilkes.

1988 25¢ Lt. Charles Wilkes Fleetwood First Day Cover
US #2387 – Fleetwood First Day Cover

The fleet of six ships departed Virginia on August 18, 1838. They traveled first to Madiera and Cape Verde before heading down the coast of South America. Once in the Pacific, the expedition continued along the coast of South America to Peru before crossing the Ocean, passing through Polynesian and reaching Australia. Heading south after leaving Sydney, Wilkes saw a wall of ice and directed his ships toward it.

1988 25¢ Lt. Charles Wilkes Colorano Silk Cachet First Day Cover
US #2387 – Colorano Silk Cachet First Day Cover

On January 19, the expedition sighted land, which Wilkes called Cape Hudson. Up until that time, there was little information about that part of the world. Though whalers traveled the waters near Antarctica, no one had mapped out the land. While explorers from other countries had spotted small areas of land there before, none had explored it as widely as Wilkes would.

1991 50¢ Antarctic Treaty
US #C130 – The Antarctic Treaty demilitarized the continent of Antarctica and preserved it for scientific research.  

Once he saw land, Wilkes followed along the shore as closely as possible, being ever careful as the water was filled with icebergs. After sailing for several more days and spotting land a few more times, Wilkes concluded that what he was seeing was a continent and named it the Antarctic Continent. Wilkes continued to follow along the coast for nearly a month. During that time, the cold and conditions were so bad that his crew and doctors warned that they should turn back, but Wilkes was adamant about completing his mission. Finally on February 21, after a month of skirting the coast for over 1,500 miles, he believed he had achieved his goal of exploring the Antarctic and agreed to head north.

1991 50¢ Antarctic Treaty Fleetwood Plate Block First Day Cover
US #C130 – Fleetwood Plate Block First Day Cover

The expedition continued for another two years after that. By the time they returned to the US in June 1842, they had circumnavigated the globe, traveling nearly 87,000 miles. Their journey included the Madeira Islands, Rio de Janeiro, Tierra del Fuego, Chile, Peru, Samoa, New South Wales, the Balleny Islands, Fiji, the Philippines, Singapore, Polynesia, and many other areas. The expedition is credited with playing a significant role in the development of 19th-century science, and in particular the growth of America’s scientific establishment. The crew collected thousands of plant and animal specimens that were later made part of the Smithsonian Institution collection. Additionally, Wilkes’s 19-volume report gave detailed information on the customs, politics, and economies of the far-away places they had explored.

Click here to read Wilkes’s report online.

FREE printable This Day in History album pages
Download a PDF of today’s article.  
Get a binder or other supplies to create your This Day in History album.  

Discover what else happened on This Day in History.

Did you like this article? Click here to rate:
5/5 - (1 vote)
Share this Article


  1. This was called the Ex-Ex or Exploring Expedition. Wilkes was a controversial figure but drove the expedition to great accomplishments. Amazing that these sailing vessels were able to penetrate and explore the Antarctic.

    1. This story is detailed in the book: Sea of Glory America’s Age of Discovery The US Exploring Expedition by Nathaniel Philbrick, a great read.

  2. Great read, Excellent story and fascinating part of history. I will check out the book Sea of Glory by Nathaniel Philbrick. Thanks.

Leave a Reply

Your email address will not be published. Required fields are marked *