Wait at least 6 months after bypass surgery or angioplasty. Wait at least 6 months after a change in your heart condition that resulted in a change to your medications. If you have a pacemaker, you may donate as long as your pulse is between 50 and 100 beats per minute and you meet the other heart disease criteria.
The Roman calendar, or âpre-Julianâ calendar, was created during the founding of Rome and is believed to have been a lunar calendar. The calendar originally consisted of hollow months that were 29 days long or full months that had 30 days.The Colosseum in Rome is one of the most famous Roman ruins.he calendar originally consisted of hollow months that were 29 days long or full months that had 30 days. The Colosseum in Rome is one of the most famous Roman ruins.
Roman engineers adhered to strict standards when designing their highways, creating arrow-straight roads that curved to allow for water drainage. The Romans built over 50,000 miles of road by 200 A.D., primarily in the service of military conquest.Highways allowed the Roman legion to travel as far as 25 miles per day, and a complex network of post houses meant that messages and other intelligence could be relayed with astonishing speed.he Romans built over 50,000 miles of road by 200 A.D., primarily in the service of military conquest. Highways allowed the Roman legion to travel as far as 25 miles per day, and a complex network of post houses meant that messages and other intelligence could be relayed with astonishing speed.