Timeline
| YEAR | The Women’s Exchange | Hermann-Grima House | Gallier House | |
| 1720s | property part of grant to Ursuline nuns, nuns arrive in America to establish convent, school and hospital | |||
| Fire destroys 4/5 of French Quarter, including St Louis Cathedral | 1788 | |||
| Treaty of San Ildefonso requires Spain to return Louisiana to France | 1800 | |||
| Louisiana Purchase negotiated | 1803 | |||
| Louisiana Statehood | 1811 | |||
| 1823 | Samuel Hermann purchases contiguous properties, 820 St. Louis, 1827-31 Conti and 1829-34 Dauphine Streets | |||
| 1825 | Ursulines sell property in building boom, high demand for residential and commercial buildings | |||
| 1831 | Hermann home constructed | |||
| 1832 | 1126 Royal constructed as commercial warehouse property and later soda/mineral water factory | |||
| First Mardi Gras parade | 1838 | |||
| 1840 | Mrs. Hermann purchases property from her husband’s creditors with her separate monies | |||
| 1844 | Judge Felix Grima acquires property from Mrs. Hermann | |||
| Yellow Fever epidemic | 1853 | |||
| 1857 | James Gallier acquires property, begins construction of his family home at 1118 Royal Street | |||
| 1859 | French Opera House opens, designed by Galliers | |||
| Louisiana secedes from the Union | 1861 | |||
|
New Orleans Falls to the Union |
1862 | Grima family in exile from NOLA, after Judge Grima refuses to sign Gen Butler’s Oath of Allegiance | ||
| 1860′s | Grima family returns from exile in Georgia | |||
|
Louisiana readmitted to the Union First ice factory established in NOLA |
1868 | James Gallier dies | ||
| 1877 | Crescent City Seltzer & Mineral Water Company commercial portion of property | |||
| Second yellow fever epidemic | 1878 | |||
| 1881 | The Christian Woman’s Exchange founded | |||
| World’s Industrial and Cotton Centennial Exposition held in Audubon Park | 1884 | |||
| 1885 | TCWE compiles and publishes Creole Cookery | |||
| 1887 | Building purchased to establish a Day care (crèche) facility | |||
| 1897 | Property sold to Gallier son-in-law | |||
| 1917 | Gallier descendant sells property; house leaves family ownership | |||
|
World War I French Opera House burns to the ground |
1919 | |||
| Women gain right to vote | 1920 | |||
| 1922 | TCWE sells Lafayette Square building, purchases Royal Street property | |||
| 1924 | 820 St Louis purchased, Royal St sold, “rooming house”, tea room and consignment shop opened | |||
| 1925 | Water Factory ceases operations at 1126-32 Royal Street | |||
| 1929 | Conti Street properties sold to Mrs. Rosalie Broussard, Broussard’s Restaurant established | |||
| World War II | 1940s | |||
| 1965 | Gallier House acquired by Richard W. Freeman, Jr., and restored as a family home | |||
| 1969 | Gallier House restored to 1860 period, converted to historic house museum | |||
| 1970s | Colonial Dames lend furnishings for historic house museum | |||
| 1971 | Hermann-Grima House opens to the public as museum | |||
| 1974 | James J. Reiss donates portraits of his ancestors, Emeranthe and Samuel Hermann | |||
| 1975 | named National Historic Landmark | |||
| 1985 | Museum accredited by American Association of Museums | |||
| 1986 | Tulane University acquires Gallier House and adjoining properties, creating Gallier House campus | |||
| 1996 | The Christian Woman’s Exchange acquires Gallier House and continues the museum tradition | |||
| 1999 | Organization renamed The Woman’s Exchange | |||
| 2000s | Grima Bernard and Grima Johnson families donate family furnishings, textiles and silver | |||
| Hurricane Katrina hits the Gulf Coast | 2005 | |||
| 2009 | AAM accredits Hermann-Grima and Gallier House as one institution displaying the highest standards of the industry. | |||
| 2011 | The Exchange Shop reopens as showcase of juried work of Louisiana women artists. | |||