First lady Melania Trump continued a more than 100-year tradition on Friday by donating her inaugural gown to the Smithsonian's National Museum of American History.

"To be honest, what I would wear to the inaugural ball was the last thing on my mind," Trump said of giving the designer two weeks' notice to design a dress.

Herve Pierre, the designer of the cream silk off-the-shoulder gown, also attended the event.

"Thank you, Herve, for all that you did to create such a wonderful piece," Trump said.

In an interview last week with Women's Wear Daily, Herve Pierre recalled the moment President Trump saw his wife in the dress.

"He said, ‘Whoa, that's really gorgeous,'" Pierre said.

The first inaugural gown donated to the Smithsonian was by Helen Taft in 1912.

"We are proud to have Melania Trump donate to this extraordinary collection," museum director John Gray said in a news release.

Melania Trump's dress will be featured in the center of "The First Ladies" exhibition, joining 26 other gowns and more than 160 other objects belonging to America's first ladies.