Math History
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Cookie Consent
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Cookie Preferences
Manage your cookie preferences below:
Essential cookies enable basic functions and are necessary for the proper function of the website.
Name
Description
Duration
Cookie Preferences
This cookie is used to store the user's cookie consent preferences.
30 days
These cookies are needed for adding comments on this website.
Name
Description
Duration
comment_author
Used to track the user across multiple sessions.
Session
comment_author_email
Used to track the user across multiple sessions.
Session
comment_author_url
Used to track the user across multiple sessions.
Session
These cookies are used for managing login functionality on this website.
Name
Description
Duration
wordpress_logged_in
Used to store logged-in users.
Persistent
wordpress_sec
Used to track the user across multiple sessions.
15 days
wordpress_test_cookie
Used to determine if cookies are enabled.
Session
Stripe is a payment processing platform that enables businesses to accept online payments securely and efficiently.
Service URL: stripe.com (opens in a new window)
Name
Description
Duration
__stripe_mid
Fraud prevention and detection
1 year
__stripe_sid
Fraud prevention and detection
30 minutes
m
Set by payment provider stripe.com to process payments
10 years
Statistics cookies collect information anonymously. This information helps us understand how visitors use our website.
Google Analytics is a powerful tool that tracks and analyzes website traffic for informed marketing decisions.
Service URL: policies.google.com (opens in a new window)
Name
Description
Duration
_gac_
Contains information related to marketing campaigns of the user. These are shared with Google AdWords / Google Ads when the Google Ads and Google Analytics accounts are linked together.
90 days
__utma
ID used to identify users and sessions
2 years after last activity
__utmt
Used to monitor number of Google Analytics server requests
10 minutes
__utmb
Used to distinguish new sessions and visits. This cookie is set when the GA.js javascript library is loaded and there is no existing __utmb cookie. The cookie is updated every time data is sent to the Google Analytics server.
30 minutes after last activity
__utmc
Used only with old Urchin versions of Google Analytics and not with GA.js. Was used to distinguish between new sessions and visits at the end of a session.
End of session (browser)
__utmz
Contains information about the traffic source or campaign that directed user to the website. The cookie is set when the GA.js javascript is loaded and updated when data is sent to the Google Anaytics server
6 months after last activity
__utmv
Contains custom information set by the web developer via the _setCustomVar method in Google Analytics. This cookie is updated every time new data is sent to the Google Analytics server.
2 years after last activity
__utmx
Used to determine whether a user is included in an A / B or Multivariate test.
18 months
_ga
ID used to identify users
2 years
_gali
Used by Google Analytics to determine which links on a page are being clicked
30 seconds
_ga_
ID used to identify users
2 years
_gid
ID used to identify users for 24 hours after last activity
24 hours
_gat
Used to monitor number of Google Analytics server requests when using Google Tag Manager
1 minute
Marketing cookies are used to follow visitors to websites. The intention is to show ads that are relevant and engaging to the individual user.
Pinterest Tag is a web analytics service that tracks and reports website traffic.
Service URL: policy.pinterest.com (opens in a new window)
Name
Description
Duration
pinterest_nt
Used for advertising and conversion tracking.
1 year