Short answers, pulled from the story.
85 percent of the world's rough diamonds pass through Antwerp's diamond district annually, generating $56 billion in industry turnover in 2011. The city's diamond trade dates to 1584, when the first diamond cutters guild was established, and today the district is home to four separate diamond bourses.
Antwerp hosted the 1920 Summer Olympics, the first Games held after World War I and the only Summer Olympics ever staged in Belgium. The main venue was the Olympisch Stadion, which is still used today by football club K Beerschot VA.
On the 4th of November 1576, Spanish soldiers sacked Antwerp in an event known as the Spanish Fury. Around 8,000 citizens were killed, several houses were burnt, and the damage was assessed at over two million pounds sterling.
The Stock Exchange in Antwerp, opened in 1531 with an inscription welcoming merchants of all nations, was the world's first purpose-built commodity exchange. The original building was demolished and rebuilt in 1872.
The Port of Antwerp ranks second in Europe after Rotterdam and within the global top 20 by tonnage, handling 235.2 million tons of cargo in 2018. Its docklands include five oil refineries and a petrochemical cluster second in scale only to the concentration around Houston, Texas.
The 2003 Antwerp diamond heist, carried out in the city's diamond district, is recorded as the largest diamond theft of all time. The district where it occurred handles 85 percent of the world's rough diamond trade annually.