After that outbreak, the city and other municipalities embarked on a costly insecticide campaign.
To combat that, the city has embarked on a campaign to rehabilitate mills and factories in the area.
Since the 1980s, the city has embarked on a fast development.
In 1976, the city embarked on what one reporter called "the first, and probably the last" venture of its kind.
Later the city embarked on a costly campaign to repair and preserve the outer sgrafitto.
At about the same time, the city embarked on a plan to encourage more minorities to move to the area.
The newly formed city embarked on a large master planning project immediately after the first council took office.
When the city with the world's largest garbage dump embarked five years ago on the nation's most ambitious recycling program, many said it would fail.
But there's another factor: The city has finally embarked on a serious program of stiff fines.
To this end, the city and central governments have embarked on an effort to develop new urban centers.