The Space Needle opened on the 111th day of the year.
Vaccination = 111

Think of the Covid-19 vaccination development beginning in Seattle after the fist confirmed case of Covid in the world outside of mainland China, in Seattle, January 15, 2020.
Pandemic = 151 (15/1)

It opened 190-days before Bill Gates’s 7th birthday (born October 28, 1955).
190, 19th triangular number
Seattle = 19
Covid-19

It opened on a date with 87 numerology.
4/21/62 = 4+21+62 = 87
Bill Gates = 87

Recall, Bill Gates was vaccinated on the 87th day of his age, January 22, 2021.