Brunelleschi solve his problem with the dome of the Florence Cathedral by employing sets of diagonal ribs based on the pointed arch and he also created many layers of support within the dome. The answer in this question is by employing sets of diagonal ribs based on the pointed arch.
That it was terrible and not as advanced as today.
The Lend Lease Act was an attempt by the United States to support other nations within the Allied Forces during World War II. Under this program the United States provided other Allied nations with food, oil, and material from 1941 to 1945.
A banking crisis in the 1990s followed by a global recession in 2008
