I was browsing the internet when these topics caught my attention. Maybe because they were new to me. I just would like to share them because they are worth knowing and sharing to others.

800px olympic flag svg OLYMPIC FLAG AND ABCD
The Official Olympic Flag Created by Pierre de Coubertin in 1914, the Olympic flag contains five interconnected rings on a white background. The five rings symbolize the five significant continents and are interconnected to symbolize the friendship to be gained from these international competitions. The rings, from left to right, are blue, yellow, black, green, and red. These colours were chosen because at least one of them appeared on the flag of every country in the world. The Olympic flag was first flown during the 1920 Olympic Games.

abc blocks OLYMPIC FLAG AND ABCD

Letters ‘a’, ‘b’, ‘c’ and ‘d’ do not appear if you spell any of the numbers between 1 and 99.  [Funnily enough, letter ‘d’ comes for the first time in Hundred]

In addition, letters ‘a’, ‘b’ and ‘c’ do not appear anywhere in the spellings of 1 to 999  [Strange, but true, letter ‘a’ comes for the first time in Thousand]

Neither letter ‘b’ nor ‘c’ appear anywhere in the spellings of 1 to 999,999,999 [Letter ‘b’ comes for the first time in Billion]

Letter ‘c’ does not appear anywhere in the spellings of entire English counting.