1) The development of blockchain technology, first introduced in 2008 with the creation of Bitcoin, has enabled secure and decentralized digital transactions and led to the emergence of cryptocurrencies.

2) The speed of a sneeze can reach up to 100 miles per hour (160 kilometers per hour).

3) Will Smith is an American actor, rapper, and producer known for his roles in films such as "Men in Black," "Independence Day," and "The Pursuit of Happyness." He has achieved success in both the music and film industries and has received numerous accolades for his work.

4) The shortest war in history lasted only 38 to 45 minutes between Britain and Zanzibar in 1896.