Product timeline. 1  1982 â Diet Coke is introduced, becoming the largest-selling low-calorie soft drink in America. 2  1983 â Diet Coke is introduced in the UK. 3  1986 â Diet Cherry Coke is introduced in American markets. 4  1994 â Diet Coke changes logo. 5  1999 â Diet Cherry Coke changes logo. 6  2001 â Diet Coke with Lemon is introduced.
21Â°C = 69.8Â°F. Use the formula F = 9/5C + 32. To convert from Celsius to Fahrenheit, multiply the number by 9, divide by 5, and add 32. In this instance, 21 x 9 = 189 / 5 = 37.8 + 32 = 69.8. Therefore, 21 degrees Celsius is equal to 69.8 degrees Fahrenheit.se the formula F = 9/5C + 32. To convert from Celsius to Fahrenheit, multiply the number by 9, divide by 5, and add 32.
1 A fever in Celsius is a temperature greater than 38 degrees, or the equivalent of 100.4 degrees Fahrenheit. 2  Also, a temperature of 39 degrees Celsius/102 degrees Fahrenheit is not dangerous in and of itself, although it should prompt the individual to seek medical attention if it persists.nother simple conversion method from C to F is to double the celsius, subtract 10%, add 32. For example: 100C = 2x100=200,200-20=180,add 32=212F. More about fahrenheit and celsius. Visit the Canadian holidays 2015 website for dates and info about holidays in Canada to help plan your vacations.