World's Fair (Exposition Universelle) was going to be held in 1889 which was the same year for the 100th Anniversary of French Revolution. Therefore a competition was launched in Paris the Journal Officiel to construct a monument which was going to be the enterance of the exhibition.
The competition was about the possibility to study of erecting an iron tower on the Champ-de-Mars with a square base of 125 metres across and 300 metres tall.
Gustave Eiffel's project was selected among 107 projects. The work started on the 28th January 1887. On the 31st March 1889, the Tower had been finished in record time of 2 years, 2 months and 5 days.
The tower was 1023 ft high after it was finished current height is 1063 ft which equals twice high as the Great Pyramid at Giza Egypt.
The Construction Schedule
The construction work took 2 years, 2 months and 5 days.
The first floor was finished on the 1st April 1888
The second floor was finished on the 14th August 1888.
The assembly was completed once and for all, with the top, on the 31st March 1889.
A Few Figures
18,038 metallic parts
5,300 workshop designs
50 engineers and designers
150 workers in the Levallois-Perret factory
Between 150 and 300 workers on the construction site
7,300 tonnes of iron
60 tonnes of paint
2 years, 2 months and 5 days of construction