Neurotransmitters are the chemical medium through which the signals move from one neuron to the next at the synapses. This is called neurotransmission and the way it is done is through electrochemical processes. A chemical message from other neurons, through dendrites causes a nerve impulse. This travels down the Axon to the terminal buttons at the end. This then releases the neurotransmitters which send a message to the next neuron.
1. The original goal of the Gregorian calendar was to change the date of Easter. In 1582, when Pope Gregory XIII introduced his Gregorian calendar, Europe adhered to the Julian calendar, first implemented by Julius Caesar in 46 B.C. Since the Roman emperorâs system miscalculated the length of the solar year by 11 minutes, the calendar had since fallen out of sync with the seasons.
Before 1600, most of Europe was using the Julian calendar that dated all the way back to Julius Caesar. Because of the way that calendar was calculated, the Julian calendar was/is off by 1 day every 128 years. Because of the growing error with the calendar, Pope Gregory--no need to know what number Gregory he was--adopted a revised calendar in 1582, now called the Gregorian calendar.