When was 90 years ago?

What is the full form of mathematics? What happened to The World Trade Center? Who has the most wins in the nfl since 2000? Did Coretta Scott King remarry after Martin Luther King Jr's death? How do you say location in German? How was religion central to the arts and architecture of the middle ages? What did the Lakota Indians houses look like? Where was the last women soccer World Cup at? What are the achievements of Kevin Rudd? Which early American group of people constructed multistoried apartment-like complexes called pueblo? What country did the last name Bailey originate from? What were the pitching stats for baseball player Doc Scanlan playing for the Pittsburgh Pirates in 1904? How did Native Americans prepare food? What types of armies where in ancient greece? What was one aspect of the contribution of scholasticism to human understanding in medieval Europe? What was the longest double header in baseball Was it the White Sox in 1967? On what dates did John Cabot explore? What did the Romans build to link every part of their vast empire? What is the name of the stretcher like thing that Egyptian queens were carried on? How did Lincoln respond when Fort Sumter surrendered at the beginning of the US Civil War?

When was 90 years ago?