The forerunner of three way calling was conference calling. Conference calling was introduced to the public in 1964, and three way calling was established as a pay service with phone companies shortly thereafter.
they take care of themselves is by calling for their mothers for help. If you don't get this then here is an explanation: the babies are calling the mother--calling the mother that's how they take care of themselves NOTE: I made this up....XD
Casual shirts emphasize comfort and personal experience over presentation and uniformity. It is a way to express our personalities. It can be fun instead of boring. Casual shirts include dress shirts, polo, sweaterset, etc.