1) The first sound film, "The Jazz Singer," was released in 1927 and marked the transition from silent movies to "talkies."

2) The recent increase in cyber attacks, including ransomware attacks targeting critical infrastructure, businesses, and individuals, has highlighted the importance of cybersecurity measures and the need for enhanced protection against evolving threats.

3) The tongue of a blue whale is so big that about 50 people could stand on it.

4) The game of basketball was invented by Dr. James Naismith in 1891 and has since grown into a global sport played at both amateur and professional levels.